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e. Malfunctioning fans
f.
g. Dirty Condenser
h. Iced evaporator
i.
j.
k. Undercharge or overcharge
l.
7. Unit running too
a. Improper cellar insulation & seal
long
b. Exhaust restricted
c. Cellar too large
d. Ambient temperature > 90°F
e. Dirty Condenser
f. Improper condenser air flow
8. Condenser fan
a. Incorrect or loose wirings
running but
b. Failed components
compressor
not running
c. Liquid
9. Compressor
a. Fan blade stuck
running but
b. Incorrect or loose wirings
condenser fan
c. Failed motors
not running
d. Fan cycle control
10.Temperature
a. Failed components
high,
compressor
b. Improper condenser airflow
stopping and
c. Dirty condenser
starting but
d. Overcharge of refrigerant
very short
e. Discharge or suction pressure
running time
11.Evaporator fan
a. Post-compressor
running too
long
12. Evaporator fan
a. Incorrect or loose wirings
running but
b. Failed components
condensing
unit not
c. Low refrigerant
running
13.Temperature
a. Low temperature setting
low
b. Low ambient temperature
c. Air probe fault
d. Temperature controller fault
14.Evaporator
a. Evaporator air flow restriction
freezing up
b. Condenser air flow restriction
Evaporator or condenser airflow
Refrigeration system restriction
Refrigerant leak
Failed components
refrigerant
compressor
too high
fan
mode for humidity modulation
- 12 -
minimum 1 foot clearance for the
ambient 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
a. Check insulation, gasket and door
opening
b. Leave minimum 3 feet clearance for
the hot air exhaust side and leave
minimum 1 foot clearance for the
ambient air intake side
c. Check for excessive size
d. Check for installation location
e. Clean condenser
f. Check
for
circulation
a. Check all wirings and connections
b. Check start relay, start capacitor,
overload protector, compressor.
in
the
c. Call service.
a. Check for proper clearance
b. Check all wirings
c. Call service
d. Check for setting
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
running
a. Reset FON
a. Check all wirings and connections
b. Check start relay, start capacitor,
overload protector, compressor.
c. Call service
a. Raise the setting
b. Move to another location
c. Check probe connections or change
a new one
d. Change a new one
a. Check for fans and CFM
b. Check for fans and CFM
fan
and
air
short
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