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l. Failed
components
l. Check compressor windings, start
relay and overload protector
5. Unit running
too long
a. Improper room insulation & seal
b. Exhaust restricted
c. Room too large
d. Ambient temperature higher >
90
°
F
e. Dirty Condenser
f. Improper condenser air flow
a. Check for insulation, gasket and
door opening
b. Leave minimum required clearance
for the exhaust side and leave
minimum required clearance for the
fresh air intake side
c. Check for excessive size or increase
setting
d. Check for installation location or
increase setting
e. Clean condenser
f. Air short-circulation
6. Fan motor
running but
compressor
not running
a. Post-compressor fan running
mode
b. Incorrect power supply
c. Incorrect or loose wirings
d. Failed
components
e.
Liquid refrigerant in the
compressor
a. Check for fan running time FON
b. Check for proper voltage
c. Check all wirings and connections
d. Check start relay, start capacitor,
overload protector, compressor.
e. Call service for OEM information.
7. 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 for checking open or
shorted windings
8. Temperature
fluctuating
a. Air sensor
a. 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 the differential 4F, 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 fluctuating.
9. Fan running
too long
a. Post-compressor fan running
mode for humidity modulation
a. Reset FON
10. Unit not
starting ,
but
temperature
a. Anti-short cycle
a. Reset AC
