Error E1 in a Haier washing machine

Boiler Haer error codes

The manufacturer offers identical mounted models L1P18-F21, L1P20-F2 and L1P26-F2, differing in power, on which the performance of the device and the area it heats depends.
All other characteristics and design features are the same. Any Haier heater is different:

Device

— The electric gas quick ignition valve immediately closes the gas outlet on the main burner when there is no flame.

— The sensor electrode, in the absence of a flame in which it is immersed, acts as a safety device for the gas valve, preventing the flow of gas.

— A quick response temperature sensor regulates the temperature of the water during heating and the temperature of the DHW water.

— Active protection in case of failure of the temperature controller sensors.

— Circulation pump to protect against overheating. Function for measuring circulation temperature and during heating.

— A water pressure sensor, or microswitch, protects the boiler from operating in the absence of water for the corresponding purposes (no water error).

— The air pressure sensor stops the operation of the device when the fan stops or there are foreign objects in the chimney.

— Automatic bypass, guaranteeing proper water supply to the primary heat exchanger of the boiler with any type of hydraulic system. Automatic bypass guarantees long-term and trouble-free operation of the unit.

— Protection of the Haer boiler from freezing. The device is activated when the temperature of the circulating water drops to 5C (for example, when installing the device outdoors). In this case, both the burner and the pump are turned on before the water contained in the heating system reaches 15C. The function does not work if gas is not supplied and the device is not connected to the mains.

— Pump anti-blocking device. Runs every 24 hours.

— Hydraulic safety valve (graduated in 3 bar increments) on the heating system.

When recharging, make sure that the boiler is disconnected from the power supply; turn the water make-up valve counterclockwise and fill in water to 1-1.5 bar (in case the water pressure is below 1 bar), when finished, close the valve by turning it clockwise. Only use the original plug and ensure proper grounding. The gas used must be compatible with the type of gas indicated on the technical label.

If the Haier gas boiler gives an E2 error, it is recommended to check if there is a blockage in the hydraulic unit system. When using floor heating, change the dip switch setting to underfloor heating. Installation and repairs should be carried out only by specialized organizations. A one-time restart is allowed to determine the cause of the malfunction. During operation of the unit, ensure ventilation and carry out regular checks for gas leaks.

In case of prolonged shutdown, excess water must be removed to prevent the system from freezing. Do not turn off the taps in front of the device; ensure a constant supply of water as soon as the device is started. Particular attention must be paid and the system checked regularly for gas leaks. After refilling it, make sure that the refill valve is closed. Open the pump vent to ensure that the heating system is properly vented.

Fan operation options. The fan runs for 8 seconds before ignition. When the flame goes out, the fan continues to run for 30-120 seconds, the running time can be set in setting mode. The device is equipped with a built-in DHW protection function - it turns off after 60 minutes of continuous DHW operation. This is normal and not a malfunction. To continue using DHW, close and open the tap again.

For normal functioning of the hot water supply, it is necessary to maintain the pressure in the system within 0.1-0.15 MPa. If the pressure goes beyond these limits, the water temperature may become unstable. Read the instructions carefully before using the unit, as this is a technically complex device and safety and energy savings depend on its correct operation. Only specially prepared water should be used as a coolant.

Haier boilers - Adjustments and maintenance

The Haier wall-mounted gas boiler is used for heating and hot water supply in private and apartment buildings. Models Aquila L1P26-F21-T, L1P26-F21S-T, L1P30-F21S-T, L1P15-F21S-T are equipped with the ability to control DHW, weather-dependent automation, a self-diagnosis function and a room temperature sensor. The Falco L1P26-F21-T, L1P20-F21-T models have a copper bithermic heat exchanger for hot water supply, thanks to which the unit operates correctly at low water pressure. A convenient and simple design will help you quickly access the elements of the unit. All service parameters can be easily configured from the front control panel. Hyer boiler safety devices - Electric gas quick ignition valve immediately closes the gas outlet on the main burner when there is no flame. — The sensor electrode, in the absence of a flame in which it is immersed, acts as a safety device for the gas valve, preventing the flow of gas. — A quick response temperature sensor regulates the temperature of the water during heating and the temperature of the DHW water. — Active protection in case of failure of the temperature controller sensors. — Circulation pump to protect against overheating. Function for measuring circulation temperature and during heating. — A water pressure sensor, or microswitch, protects the boiler from operating in the absence of water for the corresponding purposes (no water error). — The air pressure sensor stops the operation of the device when the fan stops or there are foreign objects in the chimney. — Automatic bypass, guaranteeing proper water supply to the primary heat exchanger of the boiler with any type of hydraulic system. Automatic bypass guarantees long-term and trouble-free operation of the unit. — Protection of the Haer boiler from freezing. The device is activated when the temperature of the circulating water drops to 5C (for example, when installing the device outdoors). In this case, both the burner and the pump are turned on before the water contained in the heating system reaches 15C. The function does not work if gas is not supplied and the device is not connected to the mains. — Pump anti-blocking device. Runs every 24 hours. — Hydraulic safety valve (graduated in 3 bar increments) on the heating system. When recharging, make sure that the boiler is disconnected from the power supply; turn the water make-up valve counterclockwise and fill in water to 1-1.5 bar (in case the water pressure is below 1 bar), when finished, close the valve by turning it clockwise. Only use the original plug and ensure proper grounding. The gas used must be compatible with the type of gas indicated on the technical label. If the Haier gas boiler gives an E2 error, it is recommended to check if there is a blockage in the hydraulic unit system. When using floor heating, change the dip switch setting to underfloor heating. Installation and repairs should be carried out only by specialized organizations. A one-time restart is allowed to determine the cause of the malfunction. During operation of the unit, ensure ventilation and carry out regular checks for gas leaks. In case of prolonged shutdown, excess water must be removed to prevent the system from freezing. Do not turn off the taps in front of the device; ensure a constant supply of water as soon as the device is started. Particular attention must be paid and the system checked regularly for gas leaks. After refilling it, make sure that the refill valve is closed. Open the pump vent to ensure that the heating system is properly vented. Fan operation options. The fan runs for 8 seconds before ignition. When the flame goes out, the fan continues to run for 30-120 seconds, the running time can be set in setting mode. The device is equipped with a built-in DHW protection function - it turns off after 60 minutes of continuous DHW operation. This is normal and not a malfunction. To continue using DHW, close and open the tap again. For normal functioning of the hot water supply, it is necessary to maintain the pressure in the system within 0.1-0.15 MPa. If the pressure goes beyond these limits, the water temperature may become unstable. Read the instructions carefully before using the unit, as this is a technically complex device and safety and energy savings depend on its correct operation. Only specially prepared water should be used as a coolant. Circulation pump Haier gas boilers are equipped with a circulation pump, which has air release valves and electric speed controllers. Due to the importance of ensuring optimum flow, it is recommended that electrical speed control devices specified by the manufacturer be installed at the manufacturer's site prior to delivery to the user. If there is a long break in the operation of the circulation pump, its blades may become clogged, in this case, use a Phillips screwdriver to unscrew the sealing bolts on the front cover of the pump, rotate the rotor with a screwdriver and then tighten the bolts again. When doing this, be extremely careful not to damage the circulation pump; place a tray under it to prevent damage to the power supply system due to water leakage from the pump. Haier boiler error codes Error E1 - No flame. Check the presence of gas and the serviceability of the gas valve, restart the unit. If after several attempts it does not work, turn it off and contact a professional. The ignition electrode does not work - The control board is faulty. When starting, there is a strong drop in gas pressure. If error E1 appears when you first start the equipment, this may be due to high humidity. It is necessary to dry the ignition electrode and all terminals with an electric hairdryer. Error E2 - Overheating. Check that the heating system supply valve is closed. If it is closed, open it. Check filters - Flush the heating system. Error E3 - Fan and draft malfunction. Check the fan and venturi tube. Air pressure switch problem - Check the air pressure switch. Fan is damaged - Inspect the fan. Clean or replace with a new one. Frequent E3 error messages may indicate that the chimney is too long. In the case of natural draft, the cause is overheating of the upper part of the combustion chamber; the temperature thermostat reacts at temperatures above 70 degrees. Wait for the appliance to cool down. Error E4 - There is no or insufficient water flow through the boiler. Low water pressure in the system - Fill up the system to 1.0-1.5 bar. The flow switch is faulty. Error E6 - DHW sensor defective. Low water pressure in the system - Fill the system to 1.0-1.5 bar. Error E7 - DHW sensor malfunction. The DHW sensor is faulty, the cable is broken. Error E9 - Unit temperature is below 2 degrees. Turn the device on and off. Solve the freezing problem with your heating system. This fault code only applies to the heating system. New models Error F1 - Power switch malfunction. Error F2 - Shutdown function failed. Error F3 - Flame sensor malfunction. Error F4 - The switch is in the wrong position. Error F5 - Display malfunction. Error 01 - Three unsuccessful attempts to ignite the flame. Error 02 - The safety temperature limiter is triggered. Error 03 - Poor air draft in the exhaust pipe or malfunction of the APS sensor. Error 04 - Lack of water in the system. Error 06 - The hot water sensor (DHW) is damaged. Error 07 - Central heating sensor malfunction. Questions about problems with Haier boilers Please tell me, the Haier L1P26 boiler often starts the third time, or maybe it won’t start. After this it shows error E1. I restart it, everything works. Tell me how this can be fixed? Try cleaning the electrode with a zero. Tell me about the Aquila L1P26-F21O (T) model. When the heating is turned on, several heating cycles go through, and then the water temperature remains at the same level. The heating unit stops working and does not switch to heating water. After disconnecting from the network it works, but again for several cycles. It works in normal mode. If the display does not switch to DHW, contact service. Wall-mounted boiler Falco L1P18-F21 (M) HEC. How to enter the service menu to convert from natural to liquefied in order to replace the injectors? What pressure (minimum, maximum) should be on the injectors? It doesn't have a service menu. DIP switch on board. If you were able to select the injectors, then you can also set the pressure. Invite a specialist in other models. There won't be any problems. Gas boiler Haier Falco 1L18-F20 (M) does not respond to DHW. Has anyone had it? I think the sensor is the turbine, but it spins. I can’t check it because I don’t have anything to replace it with so I can remove it and check it. While it's cold, the heating works fine. First, try setting up the modes: winter-summer, only summer. Unplug from the outlet for at least 10 minutes. If it does not work, replace the turbine. You don’t have to change it right away, but just connect another one. Spin around, blow, I don’t know which is more convenient. If signs of performance appear, then replace. If used infrequently, it may become clogged. How did you determine what was spinning? If you have already taken it apart and checked it, then it needs to be replaced. It is better, of course, to check it on a known-good unit in order to create pressure and spin it up to the required speed. Something like this. It is unlikely that the controller will fail. More like a mechanical part. A haier Aquila L1P26-F21S-T gas boiler with a coaxial chimney is in operation. His work is very disturbing, I will try to explain clearly. The situation is reminiscent of “contact bounce” in electronics. In general, it’s spring, the temperature is 45 degrees, the difference with the return is 15. When the temperature reaches 30, the exhaust fan starts to start, and immediately the temperature becomes 31 degrees and, accordingly, the fan stops. The temperature again becomes 30, and again it starts and stalls again, and so on. In winter there was no particular problem, this was repeated a maximum of 2 times, but in the spring there are 5 or 6 such cycles until the burner lights up. This is definitely not the order! But how to stop this? Switch the unit to room temperature control. Please tell me how to enter the service menu of the Haier L1P18-F21 (M) HEC boiler. It throws a lot of errors. All settings are via dip jumpers, and flame adjustment is possible with knobs. You can enter, but it's better not to touch it. Especially when the boiler is already malfunctioning, and you did not switch to propane. Although, when switching to another type of gas, the valve should ideally be adjusted. It gives error e3. Model L1P30-F21S-T. What could be the reason and what can be done? The problem is either with the draft or with the supply ventilation. The smoke exhaust thermostat is activated. Signs of malfunctions and methods for eliminating them 1) DHW water does not heat up or does not flow. Make-up valve is not closed - Close the make-up valve. The pipeline is blocked or the water supply is turned off - Clean the filter or pipeline. Water flow too high - Install a pressure reducer. 2) Gas inlet pressure is too low. Gas pressure downstream of the gas valve is too low - Increase gas pressure at the gas valve. DHW heat exchanger blocked - Replace the DHW heat exchanger. Water flow sensor does not work - Replace the water flow sensor. Flow cable is broken or not connected correctly - Replace the cable. The DHW pump does not work - Check the DHW pump and its connection. 3) Unstable DHW temperature. Inconsistent water pressure - Stabilize the pressure. The water pressure is too low and the flow rate is too low - Contact your water supply company. The make-up valve is not fully closed, the water flow is too low and the unit is in both heating and hot water preparation modes - Close the make-up valve completely. 4) DHW water is too hot. Water pressure is too low or too high. DHW heat exchanger blocked - Replace the primary heat exchanger. Gas pressure downstream of the gas valve is too high - Adjust the gas valve. Scale has formed on the NTC temperature sensor, as a result of which the set temperature is significantly lower, the actual temperature (plate type heat exchanger) or the temperature sensor is faulty - Remove the scale from the NTC temperature sensor, or replace it. 5) When starting, the flame does not burn. No gas - Check if the gas valve is open. The distance between the tip of the ignition electrode and the burner is insufficient - Adjust the distance between the ignition electrode and the burner. The ignition electrode deviates from the burner inlet - Adjust the position of the ignition electrode. The ignition electrode is broken or there is a current leak - Replace the ignition electrode. The ignition electrode cable is broken - Replace the cable. Gas valve defective - Replace gas valve. 6) The Haer boiler turns on frequently. The water pressure is too low or the filter is clogged. The boiler shuts down due to overheating and then starts again - Clean the piping, or contact the water company. The gas pressure after the gas valve is too high. The boiler stops working due to overheating and then starts again - Reduce the gas pressure by changing the gas valve settings. The water flow sensor is not functioning correctly - Replace the water flow sensor. The water flow sensor cable is poorly connected or broken - Replace the cable. The flow rotor (impeller) is faulty, the signal is unstable - Replace the flow rotor in the inlet valve. 7) Insufficient heat supply. The area of the heated room is larger than the boiler can heat - Select a unit of appropriate power. The temperature is set to low - Increase the heating temperature. Gas pressure downstream of gas valve is too low - Reduce gas pressure by changing gas valve settings. Insufficient coolant circulation in the heating system - Clean the pipeline and filter. The tap on the heating system is closed - Open the tap. High hydraulic resistance in the system - Improve the heating system and increase the performance of the circulation pump. Insufficient radiator power - Install additional radiators or increase their power. Unstable pressure in front of the gas valve. Gas supply is unstable. Incorrect gas pipe installation - Contact your gas supply company. 9) The pressure on the pressure gauge decreases slowly. Heating system leak - Turn off power, locate leak and repair. 10) The fan is making noise. The fan is loose - Check the fan and secure it. 11) Pump noise. The air vent does not work, there is air in the pump - Check and repair the air vent, bleed the air. 12) Water leakage through the safety valve. Excessively high water pressure in the heating system, more than 3 bar. Safety valve does not reset after opening - Reset manually. Safety valve broken - Replace safety valve.

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Circulation pump

Haier gas boilers have a circulation pump, which has air release valves and electric speed controllers. Due to the importance of ensuring optimum flow, it is recommended that electrical speed control devices specified by the manufacturer be installed at the manufacturer's site prior to delivery to the user.

If there is a long break in the operation of the circulation pump, its blades may become clogged, in this case, use a Phillips screwdriver to unscrew the sealing bolts on the front cover of the pump, rotate the rotor with a screwdriver and then tighten the bolts again. When doing this, be extremely careful not to damage the circulation pump; place a tray under it to prevent damage to the power supply system due to water leakage from the pump.

Haier air conditioner errors: error codes and recommendations for eliminating them

This article contains all possible malfunctions and options for eliminating them, as well as error codes for Haier boilers. All information is read in the following order: code - name - possible malfunction. If you have any additional questions, please leave them in the comments to this article. The content of the article

If you are not 100% sure what exactly the problem is and that you can solve it, immediately contact the service center to diagnose and fix the problem.

The Falco L1P26-F21-T, L1P20-F21-T models have a copper bithermic heat exchanger for hot water supply, thanks to which the unit operates correctly at low water pressure. A convenient and simple design will help you quickly access the elements of the unit. All service parameters can be easily configured from the front control panel.

Why you need to call us

According to statistics, machine repair technicians have to deal with the above typical breakdowns in 90% of cases. They are diagnosed fairly quickly, but correcting them can take varying amounts of time, depending on the complexity, the need to replace an individual part or an entire assembly. All our specialists have many years of experience and can fix any problems with washing machines, regardless of their type and class. Our service will perform the work efficiently and inexpensively - prices are affordable for everyone, as many residents of the city of Ufa have already seen.

Wall models

The manufacturer offers identical mounted models L1P18-F21, L1P20-F2 and L1P26-F2, differing in power, on which the performance of the device and the area it heats depends. All other characteristics and design features are the same.

Any Haier heater is different:

Device

— The electric gas quick ignition valve immediately closes the gas outlet on the main burner when there is no flame.

— The sensor electrode, in the absence of a flame in which it is immersed, acts as a safety device for the gas valve, preventing the flow of gas.

— A quick response temperature sensor regulates the temperature of the water during heating and the temperature of the DHW water.

— Active protection in case of failure of the temperature controller sensors.

— Circulation pump to protect against overheating. Function for measuring circulation temperature and during heating.

— A water pressure sensor, or microswitch, protects the boiler from operating in the absence of water for the corresponding purposes (no water error).

— The air pressure sensor stops the operation of the device when the fan stops or there are foreign objects in the chimney.

— Pump anti-blocking device. Runs every 24 hours.

— Hydraulic safety valve (graduated in 3 bar increments) on the heating system.

The main signs of a faulty air conditioner:

Before we start troubleshooting, we’ll immediately set the conditions that the AIR CONDITIONER MUST BE CLEAN! In order not to confuse the concepts of “faulty air conditioner” and “air conditioner requiring maintenance.” The cause of all breakdowns may be contamination of the air conditioner.

Perhaps all the MAIN malfunctions can be divided into 4 groups, which already indirectly indicate the causes. Let's designate them like this:

The most common case is the behavior of the indoor unit when “the indoor unit works, but does not cool.” This sign usually means that the unit's blinds are opening, the fan is spinning, but there is no change in temperature in the room. At the same time, you must be sure that the air conditioner is configured correctly and operating conditions are observed (for example, outside temperature).
The second also common case is the situation when water flows from the indoor unit.
Let’s denote the next case as follows: the air conditioner does not show any signs of life at all (does not respond to the remote control).
The fourth case sounds something like this - the air conditioner runs for a while and then suddenly turns off. We will also include all other problems here (non-working fans, compressor, etc.).

And now we begin to analyze all four points in order, but do not forget that the reason may be ambiguous:

The air conditioner works, but does not cool - this is often called the most common symptom

First of all, you need to make sure that the air conditioner is configured correctly and all operating conditions are met!!! To understand at this stage where to move next, you need to find out whether the compressor is working.

When working, it should “buzz” and vibrate a little:

if the compressor works, then the reason is most likely a lack of refrigerant (freon). To make sure of this, you need to check the pressure (connect pressure gauges). In most cases, leakage occurs in the connections of copper pipes at the indoor and outdoor units. There are only 4 such connections that need to be checked and, if necessary, leaks eliminated (poor-quality rolling or cracked as in the photo

screw). Often, oil remains in the “sore spot” and dust sticks to it. Read the signs of freon deficiency in a separate article.
If the compressor does not start, then without special preparation it will not be possible to eliminate the problem. Because there can be many reasons. The main ones are: the compressor starting capacitor does not work;
compressor power contacts are burnt out;
temperature sensors are faulty;
the compressor itself has failed;
damage to the control board.

Water leaking from the air conditioner is an equally common situation.

The reason for this phenomenon often lies in a clogged drainage tray or drainage hose. It is necessary to disassemble the indoor unit and thoroughly clean the drainage system. To do this, you can read the detailed instructions on “how to clean an air conditioner.”

I have come across air conditioners with defects in the condensate collection system. Water periodically flows from the block due to imperfections in the design. I will not “fire” the models. In this case, it is difficult to find the cause. You have to disassemble the indoor unit and, during its operation, study how the condensate drains. And as luck would have it, it is precisely at these moments that the drainage system functions normally!

Air conditioner won't turn on

In some cases, the solution is simple! First of all, we check the power source and the functionality of the remote control. I have already written about this, so it is better to read a separate article on why the air conditioner does not turn on. If the described actions did not help, the reason should be found in the control unit (i.e., read the next reason).

The air conditioner runs for a while and then turns off - this is another symptom expressed by the user

There can be many reasons for this: mismatch in the amount of freon in the system, overheating of the compressor, inoperability of the fans, clogged capillary tube, etc. The most difficult is an electronic malfunction. In general, it’s better to figure it out on the spot (it all depends on the signs). It’s unlikely to be possible without professional skills, experience and special tools.

If the reason is electronics, and you have some knowledge, then we begin our search with the most vulnerable parts: fuses, transformers. If a blown fuse is detected, then it is necessary to find the cause of its combustion and eliminate it (usually the problem lies in the varistor). If such actions do not produce results, then you should move on to even more complex reasons and study the board in more detail (diode bridge, voltage stabilizer, capacitors, relays).

Few people repair the board; in most cases they simply replace it with a new one . But not all air conditioner models can easily find it.

There are difficulties with rare (often inexpensive) Chinese air conditioners. Then you have to repair the board and look for suitable parts. In some situations, it may be more rational to replace the entire air conditioner.

In any case, you cannot do without special training.

Haier boiler error e1

Any gas boiler has problems. When problems occur, an error appears on the monitor. You can decipher the error code using the annotation. Let's look at the main error codes for gas boilers Baxi, De-Dietrich, Vaillant, Rinnai, Electrolux, Haier, Kiturami and Protherm.

Error codes for Baxi gas boilers

The Haier gas boiler from the Chinese manufacturer deserves attention. Do not think that this is a low-grade product, akin to Chinese consumer goods. The Haier brand is a worthy competitor to European gas equipment.

About company. Haier Group is a powerful brand that produces a variety of household appliances: from washing machines to heating boilers. Over three decades, the company has undergone significant transformations: a state-owned enterprise has transformed into a giant corporation. The company's headquarters is located in Qingdao (China). The corporation has 5 research centers with extensive connections with research institutes and universities around the world. The brand occupies 17% of the global market in the segment of boilers and gas boilers.

Test mode operation

Sometimes the Hyer washing machine does not immediately signal a problem with the appropriate code, but the user himself understands that problems exist. In this case, you can use test mode, which is launched as follows:

the “start delay” and “no drain” buttons are pressed simultaneously and held for some time;
you need to make sure that the loading hatch is closed;
the door lock is activated after ten seconds;
testing has started.

By the numbers that appear on the screen, you can determine which element is being tested:

77:77 – the solenoid valve is diagnosed;
66:66 – electric motor is checked;
55:55 – pressure switch is tested;
44:44 – the engine is being checked while it is running;
33:33 – the water heating element is checked for functionality;
22:22 – drain pump testing in progress;
END – testing completed.

If the signal appears on the screen for no apparent reason, a reset should be performed. But when it resumes, it should no longer be ignored.

Wall models

The manufacturer offers identical mounted models L1P18-F21, L1P20-F2 and L1P26-F2, differing in power, on which the performance of the device and the area it heats depends. All other characteristics and design features are the same.

Any Haier heater is different:

Device

Haier HEC L1P18-F21 S (M)

Error E1 - flame lost. What to do? Check whether gas is supplied to the burner. Make sure the gas valve is working properly. Try to start the device. Doesn't turn on? You need to contact the service.

Another reason for the lack of flame is a malfunction of the control board, which is why the ignition electrode does not work. When starting, the gas pressure drops greatly and the flame does not ignite. It happens that E1 occurs already during the first startup, then the cause may be increased humidity. What to do? Take an electric hair dryer and dry the electrode, and at the same time the terminals.

E2 - the system has overheated. Check to see if you need to open a tap in the heating system. Overheating can also be caused by clogged filters; check them and, if necessary, clean them of dirt.

E3 - the fan is broken and there are problems with draft. What should I do? Check the serviceability of the fan and venturi tube (flow meter). The second possible reason is a breakdown of the relay that responds to changes in air pressure. Also check the fan: if it is clogged or broken, clean or replace it accordingly.

It happens that error E3 appears too often. The probable cause is the excessive length of the chimney. With natural draft, the problem is associated with overheating of the upper part of the firebox. If the temperature exceeds 70°C, the thermostat is activated. The solution is to wait for the temperature to drop.

E4 - there is no water in the boiler or its flow is insufficient. The pressure has probably dropped and needs to be topped up to 1–1.5 bar. The second cause of the malfunction is a breakdown of the flow switch.

E6 - failure of the DHW circuit sensor or pressure drop. The solution is to recharge the system: it is necessary for the pressure to rise to 1–1.5 bar.

E7 - the DHW sensor is faulty or the cable is broken.

E9 - temperature drop below 2°C. Turn the device on and off. This error applies exclusively to the heating system.

In new models, the error codes are slightly different. For example, code F5 indicates a screen malfunction. You can read in detail about all errors and their explanations in the instructions.

ERR7

A critical error indicates a problem in the electronic unit. This may occur due to:

there is a short circuit;
the machine was operated for a long time in a room with high humidity;
one of the module tracks is damaged;
semiconductor elements have failed;
The contact between the semiconductor and one of the tracks has disappeared, that is, in the block that fits the connector of the modular board, one (several) wires “sit” loosely.

This error requires professional elimination. It is more advisable to involve an SMA electrical specialist.

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Features of operation

Correct operation of automated equipment is possible only with a professional approach to installation and maintenance. Service workers follow all rules for installing boilers, which guarantees their uninterrupted operation. Operating rules:

How to clean Haier boilers

Falco L1P26-F21(T): Irina G., Pavlovo

They paid 25,000 rubles. This, of course, is less than what they ask for their German and other European analogues. When choosing, we paid attention to the compactness of the device, its efficiency and safety - all three indicators coincided in Hayer. I was also attracted by the simple and intuitive controls. It is not afraid of voltage surges, it works without failures, the power is quite enough to heat our spacious apartment.

Haier Aquila L1P26-F21O(T): Nikita P., Pervomaisk

During the work, no shortcomings were found. We heat a house of 180 square meters. Three water intake points are connected. It is not afraid of power surges, does not go out, a reliable security system - you can sleep peacefully. Works even at very low gas and water pressures. Fully automated, easy to use. After turning off the light, all settings are restored.

The Haier brand presents a wide range of household gas heaters, designed primarily for small and medium-sized rooms. All models are equipped with two circuits and provide, in addition to heating, hot water supply. The products are reliable, meet current requirements, have an affordable price and deserve the attention of consumers.

Possible faults requiring repair

If the tips above did not help, we are talking about a breakdown. Most often, the following faults lead to the E1 code in Haier.

In case of serious damage to the board, for example, failure of the processor, the control unit is completely replaced.

*The price is only for the work of the master; spare parts necessary for repairs are paid additionally.

If your Haier washing machine does not drain water and shows error E1 on the display, do not delay repairs. Call the RemBytTech field service:

Or submit an online application.

We quickly go to your home: on the same day or the next day. We carry out all repair work at home, and we confirm the quality with a warranty card for up to 2 years . We will make every effort to ensure that your life quickly returns to normal, and the Haer machine works as it should!

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Preventive recommendations

Modern gas boilers are very practical and well-thought-out units; they have absorbed the best experience of past decades combined with the latest developments in the field of boiler materials, automatic control and protection. They are made in blocks, with the ability to replace worn parts and assemblies.

Units that are operated according to the manufacturer’s operating schedules are able to operate for decades without emergency stops or replacement of components.

The weakest components of the Proterm boilers and Buderus boilers:

Heat exchanger - serves to transfer heat from flue gases through a developed pipe surface to the water of the heating circuit: heating and hot water. The duration of its operation largely depends on the quality of tap water and the presence of hardness salts and suspended impurities in it, as well as on the temperature conditions in the network. At temperatures above 70 C, hardness salts are intensively deposited on the walls of pipes on the water side, gradually clogging the flow area. Low circulation causes overheating of water and pipe walls, on the surface of which fistulas form due to excessive overheating. At the slightest suspicion of the presence of scale in the pipes, chemical cleaning of the internal surface of the heater is carried out using the technology and reagents specified by the boiler manufacturer. In order to prevent scale formation, water purification filters are installed at the entrance to the boiler.
Circulation pumps. According to the new operating rules, the gas boiler operates using a closed heating system, which increases the efficiency of heating rooms and the ability to automatically control thermal conditions. Pump repairs are usually caused by damage to the mechanical and electrical parts of the structure.
The temperature sensor of the heating circuit produces a parameter that is the main one in the automatic mode control system, in connection with which the boiler is turned on/off; its malfunction may be in the contact group or caused by a break in the communication line.
A gas burner is the main device of a boiler, which burns fuel to produce thermal energy. Repairing this device involves cleaning the nozzles.
The expansion tank is a unit that compensates for the excess pressure of the medium that occurs during the heating process. Repair is carried out by replacing elastic membranes.

Most of the parts and components for repairing a boiler unit are available in the retail chain, they are also easy to find on the Internet, but if the boiler is under warranty, it is recommended to purchase them through service centers, which will guarantee not only high-quality repairs, but also its durability.

Other faults

Sometimes when operating Weller boilers, the device suddenly begins to drop the temperature in the heating system. By 10, or even 20 degrees. It might even turn off completely. At the same time, it is connected to the electrical network through a stabilizer.

In such a situation, it is the stabilizer that should be checked. Quite often, such devices fail unnoticed, and the problem is revealed only when a breakdown of the consumers connected to them is detected. It is recommended to use a voltage stabilizer when connecting gas boilers.