What is the frequent start and stop of automobile air conditioning compressor?

First, observe whether the outdoor fan has been running. If the outdoor fan has been running, the compressor has stopped. There are many reasons for compressor shutdown, such as capacitor failure, excessive refrigerant (refrigerant), compressor damage, misoperation of overheating protection, dirty condenser (outdoor unit) and so on.

If the outdoor fan also stops, it means that the indoor temperature is set (the set temperature is too high). Of course, this will happen if there is a problem with the circuit board.