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DIRT IN THE EXPANSION VALVE SCREEN:
Reclaim the refrigerant charge, remove the screen
and clean. Moisture is in the system will collect at the
expansion valve and freeze. This is indicated by
abnormally low suction pressure. Replace the drier,
dry the system and recharge.
ICE ON THE EVAPORATOR COIL:
Note operation under DEFROST CYCLE.
AIR FLOW:
Do not load product directly in front of the air return
or discharge. Insure that the fan is operational
COMPRESSOR LIFE:
The following will shorten the life of the compressor:
•
Operating a contaminated system
•
Insufficient oil charge
•
Wrong or mixed oil
•
Lack of compressor lubrication on
installation and start-up