13
Troubleshooting
Cabinet will not hold temperature
1.)
Check compressor operation. Make sure compres-
sor runs.
2.)
Check refrigerant. (A sight glass is provided in the
liquid line near condenser).
3.)
Check to see if evaporator fan motor is running.
4.)
Check thermostat (cold control) to see if it is calling
for cooling.
5.)
Inspect evaporator coil to make sure it is not iced up.
6.)
See if doors are closed and gasket sealed.
Evaporator fan motors not running.
1.)
Freezer may be in defrost mode. Fans only run
when freezer is in refrigeration cycle.
2.)
Door(s) must be closed.
3.)
Door switch activator plate must depress switch.
4.)
Fan delay switch must be in closed position.
(Freezer must have been running 5 minutes or more
since defrost or start-up).
5.)
Motors may be unplugged or defective.
Compressor will not run
1.)
Check voltage to compressor terminal board.
Voltage must be ±10% of nameplate voltage.
2.)
Make sure thermostat (cold control) functions.
3.)
Make sure main power supply switch is on and func-
tions.
4.)
Check for voltage contact across terminal #4 on time
clock.
5.)
Check for loose wire.
Ice on evaporator coil