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Question:

Car air conditioning compressor pull, but the fan does not turn, with the pressure switch has a relationship? why?

Car air conditioning compressor pull, but the fan does not turn, with the pressure switch has a relationship? why?

Answer:

Probably a circuit problem search Asked If the high voltage switch is faulty, will not cause air conditioning fan does not turn? To answer Generally not,
There is a relationship, but also to see what car, some car compressor is variable, when are the pull, pull does not mean that work. Models are not the same, there are many kinds of compressors.
Automotive air conditioning compressor pull, but the fan does not turn, with the pressure switch has a relationship. Outdoor fan and compressor in general from the same contactor control of the power supply, so the fan and the compressor is not directly related. Pressure switch in the automatic control everywhere, installed in the automotive air conditioning refrigerant circulation pipeline, the detection of refrigeration system pressure, when the pressure is abnormal to start the corresponding protection circuit to prevent damage to the system. Common pressure switch mainly high voltage switch, low voltage switch, double pressure switch and triple pressure switch and so on. In the use of air conditioning, when the heat sink is blocked, the cooling fan does not turn or refrigerant excess and other abnormal conditions, the system pressure will be too high, if not controlled, too high pressure will damage the system components.

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