17
COLD WALL TROUBLESHOOTING GUIDE
If refrigerant valves must be opened, a qualified technician should be notified to perform the work.
PROBLEM
POSSIBLE CAUSE
SOLUTION
Ice is melting
Power switch is in OFF position.
Thermostat setting
Condenser coil is dirty.
Incorrect refrigerant charge.
Condenser fan motor and
compressor are not running.
Condenser fan motor is not
operating.
Compressor is not operating.
Evaporator fan motor not running.
Check refrigerant charge
Condenser coil is dirty
Incorrect refrigerant charge
Turn switch to ON position
Thermostat should be set between
between 4 & 6
Clean condenser.
Check sight glass when used for bubbles indicating
wrong charge. Add refrigerant. Locate refrigerant
leak.
Check power supply.
Check if thermostat hasfailed.
Check if compressor is hot which may indicate that
the condenser fan motor has failed causing the
thermal overload in the compressor to trip.
Check electrical power to motor.
Check electrical power, relay, overload protector,
start capacitor and compressor motor.
Check electrical power to compressor. Check relay,
overload protector and start capacitor. Check
compressor motor.
Adjust if necessary
Clean condenser
Check sight glass when used for bubbles
indicating wrong charge. Add refrigerant. Locate
refrigerant leak..
Summary of Contents for POLAR TEMP 1000AD
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