Zhigao Air Conditioning Maintenance Service Center in Beijing Mentougou District :: Zhigao
Zhigao air-conditioning after-sales service outlets in Mentougou District , Beijing , Zhaitang Town, Qingshui Town, Miaofeng Mountain Town. Air conditioning repair, cleaning, disinfection, installation, relocation, maintenance, security inspection, etc. For more information, please see the homepage URL and contact customer service.
(1) Communication circuit
When a communication failure is detected, use a multimeter AC voltage file 250V test. If there is a voltage change between the neutral line and the signal line, and the indoor unit communication indicator continues to blink, it means that the communication is normal, otherwise the communication circuit will fail.
(2) Power module
When detecting a power module failure, the first method is to measure the power module with a multimeter diode file. The “+” and U, V, W poles, or the U, V, W, and “-” poles should have forward resistance of about 380-450Ω. If the power module fails, the second method is to use a multimeter AC voltage file to measure the voltage of the power module that drives the compressor. The voltage between any two phases should be between 0 and 160V and equal. Otherwise, the power module is damaged.
When testing the reactor, measured with a multimeter R X1, its winding resistance is about 1Ω.
When testing the compressor, first pull out the U, V, W wires with pliers and measure the voltage between the three phases. If the voltage between the three phases is the same, the compressor winding is good, otherwise the compressor winding is faulty.
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