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- 22 -
high or not
cooling and
running
continually
b. Cellar too large
c. Ambient temperature too high
d. Exhaust restricted
e. Malfunctioning fans
f. Evaporator or condenser airflow
g. Dirty Condenser
h. Iced evaporator
i. Refrigeration system restriction
j. Refrigerant leak
k. Undercharge or overcharge
l. Failed components
opening
b. Check for excessive size
c. Check installation location
d. Leave minimum 3 feet clearance for
the hot air exhaust side and leave
minimum 1 foot clearance for the
fresh air intake side
e. Check for both evaporator and
condenser fans
f. Check for air restrictions, air short-
circulation, grille directions
g. Clean condenser
h. Defrost and reset temperature
i. Call service
j. Call service
k. Call service
l. Check compressor windings, start
relay and overload protector
7. Unit running
too long
a. Improper cellar insulation & seal
b. Cellar too large
c. Ambient temperature higher >
90
°F
d. Exhaust restricted
e. Dirty Condenser
f. Improper condenser air flow
a. Check insulation, gasket and door
opening
b. Check for excessive size
c. Check for installation location
d. Leave minimum 3 feet clearance for
the hot air exhaust side and leave
minimum 1 foot clearance for the
fresh air intake side
e. Clean condenser
f. Check for fan and air short
circulation
8. Fan motor
running but
compressor
not running
a. Post-compressor fan running
mode
b. Incorrect or loose wirings
c. Failed components
d. Liquid refrigerant in the
compressor
a. Check fan running time FON
b. Check all wirings and connections
c. Check start relay, start capacitor,
overload protector, compressor.
d. Call service.
9. Compressor
running but
fan not
running
a. Fan blade stuck
b. Incorrect or loose wirings
c. Failed motors
a. Check for proper clearance
b. Check all wirings
c. Call service
10.Temperature
high,
compressor
stopping
and starting
but very
short
running time
a. Failed components
b. Improper condenser airflow
c. Dirty condenser
d. Overcharge of refrigerant
e. Discharge or suction pressure
too high
a. Check compressor windings, start
relay and overload protector.
b. Check for condenser fan
c. Clean condenser
d. Call service for removing refrigerant
e. 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
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