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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.
Complaint Possible
Causes
Response
1. Unit not
running
a. Power cord not plugged
b. No power from supply
c. Incorrect or loose wirings
d. Low
voltage
e. Setting higher than ambient
temperature
f.
Waiting for cut-in
g. Defrost
light
blinking
h. Compressor light blinking
i. Defective
controller
a. Check power cord
b. Check receptacle and fuses
c. Check all wirings and connections
d. Contact an authorized electrician
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
2. Unit not
starting , but
temperature
rising high
a. Anti-short cycle
a. Reset AC
3. Temperature
fluctuating
a. Air probe
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 cycle) 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.
4. Temperature
high, unit
stopping
and starting
normally
a. Temperature
setting
high
a. Lower
the
setting
5. Temperature
high, unit
stopping
and starting
with short
running time
a.
Air probe touching the
evaporator coil, displaying
temperature ok
b. Air probe in cold-air supply,
displaying temperature ok
c. Failed controller and probe
a. Move the air probe away from the
evaporator
b. Move the air probe away from the
cold-air supply
c. Call service for diagnosis
6. Temperature
a. Improper cellar insulation & seal
a. Check insulation, gasket and door
opening
Summary of Contents for CT12TSD
Page 19: ... 18 Fig 6 WM 65 85SFCD Evaporator Unit ...
Page 20: ... 19 Fig 7 WM 250 450SCU Condensing Unit Fig 8 WM 650 850SCU Condensing Unit ...
Page 21: ... 20 Fig 9 Liquid Filter Fig 10 Liquid Indicator Fig 11 Touch Screen Thermostat ...
Page 30: ... 29 Fig 19 CT12TSD Electrical Wiring Diagram Fig 20 CT34TSD Electrical Wiring Diagram ...
Page 32: ... 31 Fig 23 Low Ambient Temperature CT34TSD LA Electrical Wiring Diagram ...