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This Troubleshooting Chart is not prepared to replace the training required for a
professional refrigeration service person, not is it comprehensive.
Complaint
1. Unit not running
a.
b.
c.
d.
e.
f.
g.
h.
i.
2. Unit not starting ,
a. Anti-short cycle
but temperature
rising high
3. Temperature
a. Air probe
fluctuating
4. Temperature
a.
high, unit
stopping and
starting normally
5. Temperature
a.
high, unit
stopping and
b.
starting with
short running
c.
time
6. Temperature high
a.
or not cooling
and running
b.
continually
c.
d.
e.
f.
g.
h.
i.
j.
User's Troubleshooting
Possible Causes
Power cord not plugged
No power from supply
Incorrect or loose wirings
Low voltage
Setting
higher
than
temperature
Waiting for cut-in
Defrost light blinking
Compressor light blinking
Defective controller
Temperature setting high
Air probe touching the evaporator
coil, displaying temperature ok
Air
probe
in
cold-air
displaying temperature ok
Failed controller and probe
Improper cellar insulation & seal
Cellar too large
Ambient temperature too high
Exhaust restricted
Malfunctioning fans
Evaporator or condenser airflow
Dirty Condenser
Iced evaporator
Refrigeration system restriction
Refrigerant leak
- 11 -
a.
Check power cord
b.
Check receptacle and fuses
c.
Check all wirings and connections
d.
Contact an authorized electrician
ambient
e.
Lower temperature setting
f.
Wait
g.
Unit is under defrost mode
h.
Unit is under anti-short cycle delay
i.
Call service for diagnosis
a. Reset AC
a. When using an air probe, the wine bottle
temperature is mainly controlled by the
average air temperature. If the set-point
is 55°F with the differential 4F, the
cooling unit turns on at 59°F of air
temperature (It may be higher than 59°F
if it is in anti-short cycle or defrost) and
turns off at 55°F of air temperature. The
average air temperature is 57°F, and
then the wine temperature is around
57+/-0.5°F. The air is light enough to
change so quickly that it maintains
relatively constant average temperature
that
would
temperature from fluctuating.
a.
Lower the setting
a.
Move the air probe away from the
evaporator
supply,
b.
Move the air probe away from the cold-
air supply
c.
Call service for diagnosis
a.
Check insulation, gasket and door
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 ambient air
intake side
e.
Check
for
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
Response
prevent
wine
bottle
both
evaporator
and
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