-17-
high or not
cooling and
running
continually
Cellar too large
Ambient temperature too high
Exhaust restricted
Malfunctioning fans
Evaporator or condenser airflow
Dirty Condenser
Iced evaporator
Refrigeration system restriction
Refrigerant leak
Undercharge or overcharge
Failed components
opening
Check for excessive size
Check installation location
Leave minimum 3 feet clearance for the
hot air exhaust side and leave minimum
1 foot clearance for the fresh air intake
side
Check for both evaporator and
condenser fans
Check for air restrictions, air short-
circulation, grille directions
Clean condenser
Defrost and reset temperature
Call service
Call service
Call service
Check compressor windings, start relay
and overload protector
7. Unit running too
long
Improper cellar insulation & seal
Cellar too large
Ambient temperature higher > 90
°
F
Exhaust restricted
Dirty Condenser
Improper condenser air flow
Check insulation, gasket and door
opening
Check for excessive size
Check for installation location
Leave minimum 3 feet clearance for the
hot air exhaust side and leave minimum
1 foot clearance for the fresh air intake
side
Clean condenser
Check for fan and air short circulation
8. Fan motor
running but
compressor not
running
Post-compressor
fan
running mode
Incorrect or loose wirings
Failed components
Liquid refrigerant
in
the
compressor
Check fan running time FON
Check all wirings and connections
Check start relay, start capacitor,
overload protector, compressor.
Call service.
9. Compressor
running but fan not
running
Fan blade stuck
Incorrect or loose wirings
Failed motors
Check for proper clearance
Check all wirings
Call service
10.Temperature
high, compressor
stopping and
starting but very
short running time
Failed components
Improper condenser airflow
Dirty condenser
Overcharge of refrigerant
Discharge or suction pressure too
high
Check compressor windings, start relay
and overload protector.
Check for condenser fan
Clean condenser
Call service for removing refrigerant
Call service for information
11.Fan running too
long
a. Post-compressor
fan
running mode for humidity
modulation
a. Reset FON
12.Temperature
a. Low temperature setting
a. Raise the setting
