72
Installation and Maintenance
Service Manual
5. Overload and high discharge temperature malfunction
Main detection points:
●
If the electronic expansion valve is connected well? Is the electronic expansion valve damaged?
●
If the refrigerant is leaked?
●
The compressor overload protection terminal is not connected well with the mainboard?
●
If the overload protector is damaged?
●
Heat exchange of unit is not good? (heat exchanger is dirty and unit radiating environment is bad)
●
Too much load of the system causes high temperature of compressor after working for a long time?
●
Malfunction of discharge temperature sensor?
To Next Page
Loading...
