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EE communication failure fault phenomenon: the indoor unit "running" light flashing (the rest of the lights are off), the internal and external units do not work Cause analysis: the running light on the control panel flashes, press any button air conditioner does not respond, unplug the power and re-test the machine, the machine can work normally, but after 30 minutes, the same fault occurs, because the air conditioning and refrigeration are normal before the shutdown, so there will be no problem on the system, the preliminary judgment is that the external signal problem, from the fault display provided by the company, it can also be concluded that it is a communication failure, and the signal connection line of the internal and external machine is normal, hence the problem of external signal interference.
Solution: Connect 103 porcelain capacitors in parallel between the signal lines of the computer board, or replace the anti-interference C3Y computer board produced by Huafa to eliminate the fault. Lessons learned:
During maintenance, it is necessary to be good at observing the indication status of the panel when the fault occurs, and quickly find the cause of the fault according to the fault ** provided by the company. If the outdoor tube temperature sensor is faulty or the signal connection line of the internal and external units is broken, the "timing indicator" without digital display function flashes for 1 second, if there is a digital display function, E2** will be displayed, the three-phase A series "temperature lamp" flashes, and the rest of the indicators are all off.
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If the air conditioner fails, see what the home appliance maintenance master says, and share the home appliance maintenance examples.
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Glad to meet you, the key shows that here is too little freon caused by the malfunction.
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What does it mean when an air conditioner shows ee? How to fix it.
An air conditioner failure ee indicates a memory chip.
Faulty indoor PCB board.
Faults, which may be loose pins, poor contact, or broken wires; Internal control circuit board failure; Caused by a failure of the main control board.
Specific solutions to air conditioner failure EE:
1. Check whether the power access mode of the internal and external units is consistent, and check whether the signal connection lines of the internal and external units correspond one by one, and cannot be misplaced and connected.
2. Check the voltage, if the phase sequence is opposite, you can change the phase sequence of the external power cord, and be careful not to change the wiring of the air conditioner itself.
3. After confirming that the voltage, phase sequence, and wiring are correct, the indoor terminal.
If the air conditioner can be turned on normally after shorting, the cause of the fault is on the outer board or the connection line of the internal and external units, at this time, the connection line should be checked whether the connection line is wrong or loose, and the external electric control board should be replaced after excluding the line.
4. If the fault is still reported after shorting the feedback line and the neutral line, it may be that there is a problem with the indoor control board or operation board, and the control board and the operation board need to be repaired.
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1. EE is a fault**, which means that the air conditioner of Midea is abnormal, and it means that the phase sequence of the Bizhuling compressor is reversed.
2. The fault is that after the self-diagnosis module of the system control unit detects the failure of the system components, the fault information is stored in a special area inside the module in the form of digital **, and is displayed through the display screen.
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The failure of the air conditioner EE generally represents the failure of the dust collector of the outdoor unit.
There are several possible reasons for an air conditioner to malfunction**:
If there is a problem with the power line, such as the plug is not plugged in properly or the socket is damaged, you can check whether the power line is normal, try to replace the socket or plug, and make sure that the power line is in good contact.
The air conditioner sensor may be faulty, and it is necessary to check the sensor for damage or blockage, and if necessary, replace the sensor.
The circuit board of the air conditioner may fail, and it is necessary to check the circuit board for obvious damage or broken solder joints, etc., and replace the circuit board if necessary.
The overall system of the air conditioner may fail, such as compressor failure, refrigerant leakage, etc., at this time, it is necessary to contact the air conditioner with which mainland manufacturers or professional and technical personnel for comprehensive inspection and maintenance.
EE failure may also be caused by the wrong press of the air conditioner remote control**, you can turn off the child lock function and try again.
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If the Midea air conditioner has an EE failure**, it usually means that the communication spine of the outdoor unit is blocked. This may be due to a problem with the communication line between the outdoor unit and the indoor unit, or due to a malfunction of the electronic control board of the outdoor unit. It is recommended that you try the following methods to troubleshoot:
Check whether the communication line between the indoor unit and the outdoor unit is firmly connected and whether there is any damage.
Check whether the electronically controlled Yingling board of the outdoor unit is working properly and whether it needs to be replaced.
Try restarting your aircon and see if that fixes the issue.
If none of the above methods can solve the problem, it is recommended to contact the after-sales service center of Midea air conditioner or professional maintenance personnel for maintenance.
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What is the fault of the air conditioner display, this ** indicates that the memory chip of the air conditioner is not normal or there is a problem with the PCB board in the room. It may be that when the installation was in the hermit, the connecting cable wound the fan hall feedback line or display panel connection cable in the room, and then loosened or fell from the electric Xiaoqing brain board, which led to the failure. Skillful land.
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<> air conditioner displays EE, indicating that the memory chip in the air conditioner is faulty or the indoor PCB board is faulty. The reason is that during installation, the connection line winds the feedback line of the indoor fan Huo Fenghu stool or the connection line of the display panel from the computer board and loosens the silver brigade or rips it off, resulting in a failure.
This answer is applicable to most brands of air conditioners such as Gree, Midea, and Haier.
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<> Gree air conditioner shows that EE is a memory chip failure, indoor PCB board failure. The reason for the failure is that the keys are locked, followed by the failure of the PC board of the indoor unit, the search of the memory chip, and finally the failure of the frequency conversion board of the outdoor unit.
This case is for Gree KFR-35GW.
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