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User’s Troubleshooting
This Troubleshooting Chart is not prepared to replace the training required for a
professional refrigeration service person, not is it comprehensive
Troubleshooting Chart
Complaint Possible
Causes
Response
1. Unit not running
p.
No
power
q. Power cord unplugged
r. Defrost
light
blinking
s. Compressor light blinking
t. Setting higher than ambient
temperature
u. Low
voltage.
v. Incorrect or loose wirings.
p. Check power at receptacle & fuses
q. Check for power cord plug
r. Unit is under defrost mode
s. Unit waits for anti-short cycle delay
t. Lower
temperature
setting
u. Contact an authorized electrician
v. Check all wirings and connections
2. Temperature fluctuating
a. Air sensor
When using an air sensor, the wine
bottle temperature is mainly controlled
by the average air temperature. If the
set-point is 55
°
F with a differential 4
°
F,
the cooling unit turns on at 59
°
F of air
temperature 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 varying.
3. Temperature too high
a. Setting too high
b. Improper room insulation & seal
c. Room too large
d. Ambient temperature too high
e. Exhaust restricted
f. Malfunctioning
fans
g. Improper evaporator or condenser
airflow
h. Dirty
Condenser
i. Iced
evaporator
j. Sealed
system
problem
a. Lower
setting
b. Check for insulation, gasket and
door opening
c. Check for excessive size
d. Check for installation location
e. Leave minimum 3 feet clearance for
the exhaust side and leave minimum
1 foot clearance for the fresh air
intake side
f. Check for both evaporator and
condenser fans
g. Check for air restrictions
h. Clean
condenser
i.
Defrost and reset temperature
j. Call service for checking loss of
refrigerant or restrictions
