What does it mean that the motherboard of the air conditioner shows EFF0?

Add the air conditioner external unit, the motherboard shows eff0, it may be that there is an error in the system, there is a mechanical fault and other prompts, you can check the air conditioner instruction manual There should be a corresponding fault**.

FO fault**: Refrigerant leakage, this is an installation problem It may also be a pipeline hardware problem, it is recommended to call Gree customer service for repair.

1.This protection occurs when the valve is blocked or in the state of fluorine deficiency.

2.Charging mode: System fluoride deficiency or blockage protection, exhaust protection.

3.Represents system fluoride deficiency or blockage protection.

Indicates a refrigerant leak. If the new machine is not installed, it will generally not leak. It is also possible that the protection is caused by a malfunctioning part.

5.If the room temperature sensor is faulty, open the panel and put the sensor back in place.

eff0 appears, recommended.

1. Check whether the circuit board connection line between the internal and external machines is off, poor contact or disconnection.

2. Check whether the main control circuit board is damaged and needs to be replaced.

3. Check whether the control board of the external unit is faulty. I hope it can help you, thank you for your satisfaction.

Possible Causes:

1.The first reason is that the wind speed of the fan is out of control, check the fan.

2.The second reason is sensor failure.

3.The third reason is that the air conditioner host is too dirty, so it is recommended to clean and maintain it.

Workaround:1Add refrigerant.

2.Wash the filter.

3.If the indoor unit is running normally, you can determine that the main board or display board of the indoor unit is fine, and the fault occurs on the connection wire, plug connector or low-voltage switch of the outdoor unit.

Hello, air conditioner fault **e0, parameter error, generally there is a problem with the chip or power supply of the air conditioner, it is recommended to replace the air conditioner chip or air conditioner power supply to solve the fault.

Control the fan motor, electrically assisted heating, control the compressor, and control the AC contactor of the outdoor unit above.

The electrical appliances on the main board of the air conditioner are mainly used to control the opening and closing of the compressor and fan.

The main board of the internal unit controls the relay to engage and disconnect to determine whether the external unit is activated.

Relays generally have an induction mechanism (input part) that can reflect certain input variables (such as current, voltage, power, impedance, frequency, temperature, pressure, speed, light, etc.); There is an actuator (output part) that can realize "on" and "off" control of the controlled circuit; Between the input and output parts of the relay, there is also an intermediate mechanism (drive part) that couples and isolates the input quantity, processes the function, and drives the output part.

Landlord: If you guess correctly, it should be a relay.

The role of the relay for the indoor unit board of the air conditioner:

1. Generally speaking, the current air conditioning indoor unit adopts a tap motor, so the relay is to control the speed of the fan, generally three speed wind or five speed wind, when the control program needs the fan to run to the corresponding speed, the relay will be engaged and conducted, so as to achieve the purpose of controlling the speed. However, at present, the gradual adoption of DC motors is rarely seen.

2. The other functions are not very clear, depending on the specific situation, but it is nothing more than the role of controlling strong conduction through weak electricity.

It should be that the relay is burned out, you can replace it with a new one. The owner is the air conditioner of what kind of car.

Is this going to Zhongguancun? Or uh, it's Bainaohui.,It's these places to take a look.。。

There is no need to change the wiring, because they are all 220 volts, and the capacitors are built-in, and the original temperature detector cannot be used. The universal board you bought has sensors!

The monitor is used to observe the operation of the air conditioner and the ambient temperature. The centralized controller is an intelligent control system in which multiple air-conditioning units run in parallel, are uniformly controlled by the centralized controller, and distribute the operating power of the units.

The module is generally integrated on the motherboard, and the inverter air conditioner sometimes has a separate module, but it is rare, and the general module is broken and the motherboard is directly replaced, and no one repairs it.

Indoor unit and outdoor unit.

Wiring method: It is available on the wiring board of the indoor unit or the BAI outdoor unit, and it can be connected as shown above. If the label is unclear or dropped, you have to disassemble the indoor and outdoor units and watch the circuit direction to determine the wiring method.

This way to find the way is actually easy to find, by setting the different operation modes of the indoor unit, measuring the power supply on the terminal of the indoor unit, so as to judge the purpose of each terminal of the indoor unit, the outdoor unit can judge the purpose of each terminal according to the direction of the line in the machine, and finally connect the indoor unit and the outdoor unit.

The connection between the air conditioner and the power supply: the 5P cabinet should be made of three-phase electricity, you can directly connect to the three-phase power supply after you determine the power supply terminal, some air conditioners may have phase sequence requirements, so if the air conditioner cannot operate normally after connecting, you have to adjust the phase sequence (replace any two of the three-phase power supply).

Since you don't provide a specific model, we can't directly help you find and provide you with wiring information.

What can I do, I can only wait, everyone is hot on a hot day, and the after-sales service is busy selling air conditioners and installing air conditioners.

No way, I've worked as a customer service before, and their principle is to shirk if they can, and they will definitely not put the responsibility on submitting changes themselves.

About the aboveDifferent brands of air conditioning motherboards, it is best not to recommend that they are universalThe reason for this is,Different brands of motherboard microprocessor models are different, and the program control and interfaces may also be differentIn this way, even if you replace it, it will not work normally, so it is better to consider it carefully.

As you understand it can't. But in front of the great gods, nothing is impossible.

The cost of substitution is a bit large. It's not something that can be solved in minutes.

Motherboards with similar specifications of the same model or series can be replaced, and it is not recommended to change them for different series and large differences in parameters, which may not be used or may have problems.

The symptoms of a broken aircon motherboard are as follows:

The main symptoms of a broken aircon motherboard:

If the light is not on, first check whether the motherboard is in good condition and the availability of the motherboard's resistance and chip, and then replace the BIOS and check the quality and fit of the BIOS; Then replace the memory, such as a single-channel motherboard with a single memory, a dual-channel motherboard to see if the two memories are paired, and finally replace the CPU (the probability of P4 CPU problems is very small).If it still doesn't work, you can make sure that there is a problem with the motherboard.

In the case of an error, it is generally due to the update of the BIOS and the support of the CPU frequency of the motherboard, as long as you flash the latest BIOS and turn off the error of the health disk.

In the case of a crash or reboot, if the replacement of memory and CPU is determined to be a problem with the motherboard, then the only way to replace the motherboard is to replace the motherboard (there is a problem with the chipset on the motherboard).

If there is a problem with the onboard NIC, PS 2 and graphics card, if the NIC loses packets and cannot connect to the external network, transfer a PCI NIC. The PS2 keyboard or mouse cannot be used, and if there is a problem with the graphics card's display, you can only change the motherboard.

In addition to knowing what problems will occur with the motherboard, the air conditioner must also know how to repair and maintain it, so that it can be used for a longer time. Occasional small problems, everyone can generally solve, if it can't be solved, you can also go to the after-sales service for maintenance. Once the air-conditioning motherboard is broken, the air-conditioner cannot be used, so it also needs daily maintenance, and if there are small problems such as dripping water when in use, it will be solved in time to avoid deterioration, and finally cause the air-conditioning motherboard to break.

Moreover, the air conditioner should be cleaned before use, so that dust will not easily enter the motherboard.

I only broke it a few days ago, that is, an accessory on the motherboard was broken, which was manifested in the fact that it did not blow the air, and the external machine did not work, and at first I thought it was a ...... without ammonia.

I am a Haier air conditioner, the indoor unit fan, the fan is turning, the internal and external units do not pass on any reason.