high and low temperature in the transformation (Dieselpartsworld) 2016-02-28    

The manifold pressure gauge for fault diagnosis of high and low temperature in the transformation
Fault form:
After the outlet temperature from low to high, high and low temperature in the transformation between high pressure increase, reduce the pressure;
Shut down the compressor before freezing evaporator
The fault may exist:
After the refrigerant circulation circuit in water
This pressure sensor signal error
When the evaporator temperature switch / sensor damage
Repair method of fault:
This system will replace the desiccator, vacuum treatment, vacuum 30min
I check the temperature of the evaporator / switch sensor, replace if necessary.