The household new era air energy water heater shows what the E2 is faulty

Sometimes the air energy water heater controller will show E2, what is the fault? We consulted with the relevant personnel of the technical department of the new era, and they analyzed the problem of the controller displaying e2 as follows.

1. The temperature displayed by the controller is lower than the actual water temperature. This may be due to a mismatch in the temperature probe being replaced, in which case a suitable temperature probe is sufficient. There is also a possibility that the water temperature sensor is not placed reasonably or cannot be placed in place, and the actual water temperature cannot be sensed.

In this case, it is necessary to design a reasonable temperature sensing position and fix the temperature sensing head.

2. The Y-type filter is blocked, and the circulating water volume of the main engine becomes smaller. Solution: Clean the filter.

3. If there is no water in the water tank, it will also cause the controller to display E2, check whether the water inlet is normal, or whether there is water in the tap water or pool.

4. The circulating pipeline is blocked or the valve on the pipeline is broken, resulting in the valve not being opened or not fully opened. We need to do the corresponding repairs.

5. There is air in the circulation pipe, which is also a reason. The air in the circulation duct will cause insufficient circulation flow. Exhausting the air will solve the problem.

6. Circulating water pump problem. If the circulating pump is broken, it can be replaced. However, there is another kind of circulating pump that is not broken, and the flow and head of the circulating pump are small, and the suitable circulating pump needs to be replaced in this case.

7. Excessive refrigeration will also make the controller display E2. Refrigerant needs to be charged according to the standard.

8. Problems caused by broken control lines or poor contact of high-voltage switches. Solution: The control line needs to be reconnected.

9. The high-voltage switch cannot be reset when it is disconnected. Solution: Replace the high-voltage switch.

10. If there is no problem with the above. Then you can try the protection on the short-circuit board. If it still doesn't work, then the motherboard is probably broken, and you can replace the motherboard.

What is the cause of E2 on the water heater and how to solve it?

For gas-fired water heaters, E2 indicates the wind pressure or the failure of the fan, which may be due to the following reasons;

The air inlet is blocked by foreign bodies, resulting in a decrease in the air intake; It may also be that the smoke duct wind shield is jammed and the smoke exhaust is not smooth; Or after the fan or fan starting capacitor is damaged, the wind speed does not rotate, causing the flame to go out;

If it is a condensing model, it may be due to the blockage of the drain hole of the condenser, resulting in the accumulation of condensate in the condenser and the flue gas cannot be discharged; It is also possible that the 4th or 5th nozzle on the right side of the distributor is blocked, causing the flame to go out when the fire is converted, resulting in a fault alarm;

Precautions for use:

It is necessary to ensure that the room is well ventilated, and when the gas water heater has air leakage, water leakage, flame does not extinguish after water stopping, poor combustion conditions, etc., it should be stopped from use, and the gas management department or manufacturer should be notified in time for repair, and it is strictly forbidden to disassemble and repair it without permission;

Regularly ask the professionals or manufacturers designated by the gas management department to clean and maintain the gas water heater, and timely overhaul to keep the gas water heater clean to ensure that it can work well;

Always check the entire pipeline system from the gas source to the water heater, and apply soapy water foam to the pipeline and each joint to check whether the gas pipeline and external hose have cracks, aging, loosening and other faults, and ensure that there is no air leakage.

What does it mean when a gas water heater shows e2? The master teaches you how to inspect and repair, which is worth collecting.

What is the cause of E2 on the water heater and how to solve it?

When e2** is present, the water temperature in the water heater is too high.

Maintenance method: When the water heater appears E2, turn off the machine as soon as possible, do not touch it, and wait for the maintenance master to arrive.

1. Eliminate whether the water heater is not full and the water is heated by electricity.

2. Check whether the water heater pipeline is connected incorrectly, such as the reverse connection.

3. Repair or replace the control panel.

Fault **E2 Meaning: Halfway through, the water heater detects a flame, but then disappears, and the machine shows E2.

The following tests should be performed gradually:

1. The air inlet is blocked by foreign objects such as raw meal belt, resulting in a decrease in air intake.

2. The smoke pipe anti-backwind baffle is stuck, resulting in poor smoke exhaust.

3. After the fan or fan starting capacitor is damaged, the wind speed does not rotate, causing the flame to go out.

4. The drain hole of the condenser of the condensing model is blocked, resulting in the accumulation of condensate in the condenser, and the flue gas cannot be discharged, resulting in E2 failure.

5. The 4th or 5th nozzle on the right side of the distributor is blocked, causing the flame to extinguish and report E2 fault when the fire is converted.

6. Check whether there is a large amount of carbon deposition at the smoke outlet of the smoke pipe inspection machine, the liquefied gas model is easy to accumulate carbon due to poor combustion, and it needs to be disassembled and cleaned, and the pressure of the liquefied gas source should be checked.

The occurrence of E2 is due to abnormal wind pressure or fan failure.

Reasons: 1. When the flue is blocked or the flue resistance is too large, the wind pressure switch will act and the program will be interrupted; Reliable plugging, no air leakage, no plugging errors, etc.;

2. When the fan fails, the speed is too low or stopped, and the program is interrupted. Check whether the connection line between the fan and the main control board is plugged in reliably, whether the fan is damaged, whether the fan is stuck, etc. Check the water outlet of the hot water faucet, if it is small, it should be a problem caused by insufficient water flow.

The water heater **table shows that the E2 fault** indicates abnormal wind pressure or fan failure. There are many components that are damaged in any aspect of water, gas, and electricity, which will cause water heater failure.

It may be that the hot water pipeline is blocked and the scale needs to be cleaned, it may be that the air pressure switch is damaged and the air pressure switch needs to be replaced, or it may be that the smoke exhaust pipe of the water heater cannot exhaust the smoke.

Maintenance method for gas water heater E2 failure: the air inlet is blocked by foreign objects such as raw meal belt, resulting in a decrease in air intake, and the smoke pipe anti-backdraft baffle is stuck, resulting in poor smoke exhaust. The smoke pipe inspection machine smoke outlet to check whether there is a large amount of carbon deposit, the liquefied gas model is easy to accumulate carbon due to poor combustion, and it needs to be disassembled for cleaning, and the pressure of the liquefied gas source is checked.

Maintenance Method:

1. Clean the inner tank regularly, because of the trace impurities and minerals contained in the water, after long-term use, it will slowly precipitate, if it is not cleaned, it will affect the water quality and the service life of the whole machine;

2. The user of the electric water heater regularly asks professionals to check the equipment every year to check the safety performance and possible potential hidden dangers to eliminate, 3. If it is idle for a long time, the power supply should be turned off and the water storage of the inner tank should be emptied;

4. In order to ensure the normal use of the water heater, the safety valve needs to be maintained no less than once a month to ensure the normal pressure relief of the safety valve.

Constant temperature gas water heater reported E2 fault handling.

1. The first problem is likely to be due to the failure of the fan of the water heater, so the gas water heater will have the failure of E2. 2. It may also be because the air pressure switch or the flue is blocked, and the gas water heater will also have problems such as E2. 3. When there is a problem with the fan circuit, this kind of fault may occur, which is also relatively common.

4. When the temperature of the water heater is too high, this E2 fault prompt will also appear. Suggested solutions: 1. Check whether the air pressure switch of the water heater is damaged, if the air pressure switch is broken, contact the maintenance personnel to replace the air pressure switch.

2. When the flue of the water heater is blocked, then the flue needs to be disassembled, dredged, and then installed, which can solve the E2 fault of the gas water heater. 3. When the fan fails, it is necessary to replace the fan by professional personnel, and do not disassemble it by yourself to avoid accidents. 4. When the motor capacitor fails, the motor capacitor also needs to be replaced to solve the problem.

5. Look at whether the water pressure is too low, the water pressure is too low will also cause this situation, if it is determined that the water pressure is too low, then you need to install a booster valve at home, or stagger the water heater at peak water consumption.

Gas water heaters.

The occurrence of E2 failure generally refers to the air pressure inside the water heater.

It is not normal, or it may be that the fan of the gas water heater is faulty and the air outlet is blocked.

1. Most of the E2 failures of gas water heaters are caused by the blockage of foreign objects at the air inlet, resulting in a sudden decrease in the air intake, so you can open and disassemble the air inlet, and then clean and dredge the gas water heater can be effectively solved.

2. It may also be caused by the damage to the starting capacitor of the fan, the wind speed is too low, and the flame is too small to extinguish, so you can only ask a more professional maintenance personnel to conduct a comprehensive inspection or replace to solve the problem.

3. The gas water heater is generally composed of a valve body assembly, a small fire burner, a main burner, a heat exchanger and a safety device, and also includes a flue water heater flue and a strong exhaust water heater.

No matter which part of the device is abnormal, it may cause the overall operation to be abnormal. After a period of use, an overall and comprehensive hardware elimination is required to ensure safety and avoid failures.

4. The gas water heater should be equipped with safety valves, and the water inlet pipe, outlet pipe and gas pipe are installed. Because the valve body assembly controls the entire working process, including water valves, air valves and micro switches.

and the normal operation of the ignition function, which can protect personal safety and extend the service life.

1. The poor smoke exhaust of the water heater will lead to the display of this fault**, you can check whether there is a flue blockage, if the flue is blocked, you only need to clean the flue to ensure that the smoke exhaust is smooth. 2. You can take a look at the air pressure switch of the water heater, if the air pressure switch is faulty or broken, it will also lead to the display of this fault**, you can ask the after-sales maintenance personnel to replace the air pressure switch. 3. Turn on the heat exchanger of the water heater and look at the carbon deposits inside.

situation, if the carbon deposits are severe, they need to be cleaned up.

Cause of failure of E2:

1. Due to the blockage of the flue, the normal smoke exhaust of the water heater is affected.

2. The air pressure switch of the water heater is faulty or damaged.

3. Due to excessive carbon deposition in the heat exchanger of hot water.

4. The fan of the water heater cannot be started normally, resulting in a display failure**.

5. Due to the weather, when it is windy, the wind is easy to pour into the water heater through the smoke exhaust pipe. Causes the water heater to stall and thus show a fault**.

6. If the control board of the water heater is faulty or damaged, it will also lead to failure.

7. Due to the aging of the internal components of the water heater.

1. E2 will be displayed after the flame is extinguished.

2. The gas pressure of liquefied gas may be too high or too low, and the pressure after the pressure reducing valve of liquefied gas should be adjusted to about 2800pa. In winter, the temperature is low, the gas rate is slow and the gas supply is insufficient.

3. The rated gas pressure of natural gas should be about 2000, and it is not easy to ignite when the pressure is small.

4. When the liquefied gas cylinder is used, it is turned upside down, and the residual liquid is poured into the water heater gas.

In the valve body, the gas valve is working abnormally.

5. The fan works abnormally, and the fan does not rotate.

6. The solenoid valve is not opened, and the coil is broken.

7. The voltage provided by the computer board to the solenoid valve is too high and small, so it cannot open the valve.

8. The proportional valve coil is damaged.

Suggested workaround:

1. Gas water heater.

Also known as gas water heater, it generally uses gas as fuel, and then burns and heats it quietly, and then transfers the heat to the cold water flowing through the heat exchanger, so as to achieve the purpose of preparing hot water. Therefore, it is necessary to pay attention to the combustion environment of gas.

2. If there is a lack of water or insufficient water pressure in the process of working of the gas water heater or the ignition process, the pulse igniter will automatically cut off the power supply by detecting the signal fed back by the induction needle, and immediately return to the original normally closed valve state in the case of lack of power in the gas transmission solenoid valve, that is to say, the gas has been cut off at this time, and the gas water heater is closed to play a role in safety protection.

1. On behalf of the gas water heater.

If the wind pressure is abnormal or the wind pressure switch is faulty, first of all, if the wind is blowing outside, the outdoor air pressure will be greater than that indoors, which will lead to the E2 alarm of the gas water heater, and you can wait for the wind stop pressure to return to normal before checking whether the problem is solved. 2. It may be that the position of the air inlet is blocked by a foreign object. 3. The starting capacitor of the fan fails to start normally due to failure or aging.

Suggested solutions: 1. Wait for the indoor and outdoor pressure to return to normal and check whether the problem is solved. 2. Check the position of the gas water heater inlet, find the blocked foreign object, and use a hose or vacuum cleaner.

Clean the brush and dredge the water inlet to ensure that there is enough gas to enter the gas water heater to ensure that it can be fully burned. 3. Disassemble the shell of the gas water heater, find the starting capacitor of the fan, and use an ohmmeter and an electric pen.

If the capacitor is faulty, or can not work normally, you need to replace a new capacitor, and re-fix the capacitor with soldering. 4. The gas water heater needs to install a safety valve to avoid the occurrence of danger.