Service Manual
5. Overload and high d ischarg e te m pe rature m a lfunction
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?
Installation and Maintenance %
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