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    What are the common faults of air conditioning compressor repair

    What are the common faults of air conditioning compressor repair Presumably everyone is also curious about the cooling effect of the air conditioner. In fact, all this is the credit of the compressor. The principle is that the compressor extracts the refrigerant from the low-pressure area, compresses it, and sends it to the high-pressure area for cooling and condensation. In the medium, the refrigerant also changes from gaseous state to liquid state, and the pressure increases. As long as the machine will fail, the compressor is no exception. Today I will share with you the common failures of air conditioning compressor repair. 1. Fault type: compressor body leakage Machine model: KFR-120LW / K2SDY Failure phenomenon: no cooling Cause analysis: Check that the compressor has no refrigerant, and find that there are blisters at the welding place of the compressor base casing, causing refrigerant leakage. Solution: replace the compressor Summary of experience: The cause of fluorine leakage: the welding between the compressor casing or the casing and the suction and exhaust pipe is not strong. 2. Fault type: short circuit between compressor turns Machine model: Split hanging machine, cabinet machine series Fault phenomenon: The cooling effect is not good, the compressor trips. Reason analysis: the machine can run normally but the cooling effect is poor, check that there is no dirty blockage of the two heat exchangers, the speed of the indoor and outdoor fans is normal, and the pressure of the compressor is normal, but the current is too large. If the compressor fails to start when it restarts, it can be judged as a short circuit between the turns of the compressor. Solution: replace the compressor Summary of experience: When judging the failure of the compressor, we should carefully eliminate the external faults, such as: the internal fan air volume, the external fan air volume, the press capacitor capacity, etc. 3. Failure type: slight gas compressor Machine model: Split hanging machine, cabinet machine series Fault phenomenon: The cooling effect is not good, the compressor trips. Reason analysis: the machine can run but the cooling effect is poor, check that the heat exchanger is not blocked, the indoor and outdoor fan speed is normal and there is no short circuit cycle, the voltage is normal, and the suction pressure is high, the current is small, and there is a slight inside the compressor Gas string, resulting in a decline in the actual output capacity of the compressor. Solution: replace the compressor Summary of experience: When judging the failure of the compressor, we should carefully eliminate the external faults, such as: the internal fan air volume, the external fan air volume, the press capacitor capacity, etc.

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