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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
2. Unit not starting
and temperature
rising high
3. Temperature
fluctuating
4. Temperature
high, unit
stopping and
starting
normally
5. Temperature
high, unit
stopping and
starting with
short running
time
6. Temperature
high or not
cooling and
running
continually
User's Troubleshooting
Possible Causes
Power cord not plugged
a.
No power from supply
b.
Incorrect or loose wirings
c.
Low voltage
d.
Setting
higher
than
e.
ambient temperature
Waiting for cut-in
f.
Defrost light blinking
g.
Compressor light blinking
h.
Defective controller
i.
a. Anti-short cycle
a. Air probe
a. Temperature setting high
Air
probe
touching
a.
evaporator
coil,
temperature ok
Air probe in cold-air supply,
b.
displaying temperature ok
Failed controller and probe
c.
Improper cellar insulation &
a.
seal
Cellar too large
b.
Malfunctioning fans
c.
Evaporator airflow
d.
Check power cord
a.
Check receptacle and fuses
b.
Check all wirings and connections
c.
Contact an authorized electrician
d.
Lower temperature setting
e.
Wait
f.
Unit is under defrost mode
g.
Unit is under anti-short cycle delay
h.
Call service for diagnosis
i.
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 prevent wine
bottle temperature from fluctuating.
a. Lower the setting
the
Move the air probe away from the
a.
displaying
evaporator
Move the air probe away from the
b.
cold-air supply
Call service for diagnosis
c.
Check insulation, gasket and door
a.
opening
Check for excessive size
b.
Check for evaporator fans
c.
Check for air restrictions, air short-
d.
circulation, grille directions
-11-
Response
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