Common knowledge and skills of inverter air conditioner repair
1. When the air conditioner fails, we can first check whether the connector of the indoor unit of the air conditioner is out of order. At the same time, check whether there is dust on the fins of the air conditioner condenser. Whether the fan is operating normally. Then check whether the suction tube of the compressor is dew condensation, whether the filter is frosted, whether the capillaries are clogged, etc. At the same time, you can also watch the air-conditioning fault code displayed on the display of the air-conditioner, and judge the air-conditioning based on the fault code failure.
2. In addition to watching and inspecting the malfunction of the air conditioner, we can also check it by listening. First of all, we can listen to whether the sound of the fan of the outdoor unit and the indoor unit of the air conditioner is running smoothly. Is there any frictional sound or abnormal noise caused by resonance during the operation of the compressor? Then listen to the sound of the liquid flowing as the condensate flows.
3. After listening and watching, you can also use the touch to check. The touch is mainly to sense whether the temperature of each part of the air conditioner during the work is the normal temperature generated during operation, so that we can check the failure of the air conditioner. Is it caused by excessive temperature during operation?
4. After watching, listening, and touching, you can also use the smell method. The smell is mainly to smell the internal and external coils of the air-conditioning compressor. Is there a scorching smell due to the increase in the temperature of the compressor? The module has no burnt smell. The way of smelling is also to confirm whether the air conditioner in the process of use is a part of the burnt smell due to excessive temperature.
When the air conditioner does not cool, it is generally due to the lack of refrigerant in the air conditioner or the air conditioner has not been cleaned for a long time. The cooling effect of the air conditioner's heat sink is poor. At this time, we can first check that the refrigerant of the air conditioner is insufficient because the air conditioner is used. The time is too long or the refrigerant is insufficient due to the leakage of the refrigerant. The air conditioner has not been cleaned for a long time, and the air conditioner is not refrigerated, so the air conditioner must be carefully cleaned to allow the air conditioner to fully dissipate heat.
When there is water dripping from the indoor unit of the air conditioner, it is generally because the installation position of the air conditioner is not correct, not in the horizontal direction, or because the drain pipe of the air conditioner is dripping due to poor drainage of the air conditioner. A common cause. When we encounter water dripping from the indoor unit of the air conditioner, we can first detect from these aspects.
During the operation of the air conditioner, the noise is too loud. It is necessary to check whether the fan blades of the outdoor unit of the air conditioner deform and accumulate too much dust. The incorrect placement of the compressor of the air conditioner and the excessive workload are also common reasons that cause the air conditioner to make a lot of noise during the operation. We can also start from these aspects when solving the noise of the air conditioner.