Causes and maintenance methods of air conditioning compressor icing：
1. Incorrectly installed thermostat causing malfunction？
Correct installation failure to replace
Causes and maintenance methods of air conditioning compressor icing：
1. Control valve failure？
Failure to replace
Causes and maintenance methods of air conditioning compressor icing:
1. Expansion valves not working properly？
Failure to replace
Causes and maintenance methods of air conditioning compressor icing:
1. High refrigerant charge
Reduction to standard dosage
