Wine-Mate: Troubleshooting Solutions Guides

 

Note: This Troubleshooting Chart is not prepared to replace the training required for a professional refrigeration service person, not is it comprehensive.

1. Unit not running

Possible Causes Response

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 & fuses
c. Check all wirings and connections
d. Contact an authroized 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

Possible Causes Response

a. Anti-short cycle

a. Reset AC

3. Temperature fluctuating

Possible Causes Response

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) 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

Possible Causes Response

a. Temperature setting high

a. Lower the setting

5. Temperature high, unit stopping and starting with short running time

Possible Causes Response

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 high or not cooling and running continually

Possible Causes Response

a. Improper cellar insulation & seal
b. Cellar too large
c. Ambient temperature too high
d. Exhaust restricted
e. Malfunctioning fans
f. Evaporator or condenser airflow
g. Dirty Condenser
h. Iced evaporator
i. Refrigeration system restriction
j. Refrigerant leak
k. Undercharge or overcharge
l. Failed components

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 both evaporator and 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
k. Call service
l. Check compressor windings, start relay and overload protector

7. Unit running too long

Possible Causes Response

a. Improper cellar insulation & seal
b. Exhaust restricted
c. Cellar too large
d. Ambient temperature > 90°F
e. Dirty Condenser
f. Improper condenser air flow

a. Check insulation, gasket and door opening
b. Leave minimum 3 feet clearance for the hot air exhaust side and leave minimum 1 foot clearance for the ambient air intake side
c. Check for excessive size
d. Check for installation location
e. Clean condenser
f. Check for fan and air short circulation

8. Fan motor running but compressor not running

Possible Causes Response

a. Post-compressor fan running mode
b. Incorrect or loose wirings
c. Failed components
d. Liquid refrigerant in the compressor

a. Check fan running time FON
b. Check all wirings and connections
c. Check start relay, start capacitor, overload protector, compressor.
d. Call service.

9. Compressor running but fan not running

Possible Causes Response

a. Fan blade stuck
b. Incorrect or loose wirings
c. Failed motors

a. Check for proper clearance
b. Check all wirings
c. Call service

10. Temperature high, compressor stopping and starting but very short running time

Possible Causes Response

a. Failed components
b. Improper condenser airflow
c. Dirty condenser
d. Overcharge of refrigerant
e. Discharge or suction pressure
too high

a. Check compressor windings, start
relay and overload protector.
b. Check for condenser fan
c. Clean condenser
d. Call service for removing refrigerant
e. Call service for information

11. Fan running too long

Possible Causes Response

a. Post-compressor fan running mode for humidity modulation

a. Reset FON

12. Temperature low

Possible Causes Response

a. Low temperature setting
b. Low ambient temperature
c. Air probe fault
d. Temperature controller fault

a. Raise the setting
b. Move to another location
c. Change a new one
d. Change a new one

13. Evaporator freezing up

Possible Causes Response

a. Evaporator air flow restriction
b. Low temperature setting
c. Low ambient temperature
d. Defective controller or probe
e. Not stopping due to air leak, high ambient temperature, condenser air flow restriction or pull-down cooling
f. Initially working then stopping, moisture in the system
g. Refrigerant low or leaking
h. Capillary tube or expansion valve blockage

a. Check for fans and air flow
b. Check for set-point
c. Change defrost cycle
d. Check for controller and probe
e. Check for seal, door opening, ambient temperature and condenser air flow
f. Call service
g. Call service
h. Call service

14. Water leak

Possible Causes Response

a. Air leak in the wine cellar causing excessive condensate
b. High humidity causing excessive condensate
c. Evaporator air flow restriction
d. Water passages restricted
e. Drip tray leak (No water overflow but water leak)

a. Check for air leak
b. Use drain line
c. Check supply air flow or air TD
d. Clean the drip tray
e. Seal the leak using silicone sealant

15. Excessive condensate in wine cellar

Possible Causes Response

a. Air leak in the wine cellar causing excessive condensate
b. High humidity causing excessive condensate
c. Water passages restricted

a. Check for any air leak
b. Use drain line
c. Clean the drip tray

16. Circuit tripping

Possible Causes Response

a. Incorrect fuse or breaker
b. Incorrect wirings
c. Failed components

a. Check for proper fuse or breaker
b. Check for wirings and connections
c. Call service

17. Noise operation

Possible Causes Response

a. Mounting area not firm
b. Loose parts
c. Compressor overloaded due to high ambient temperatures or airflow restriction
d. Defective components

a. Add support to improve installation
b. Check fan blades, bearings, washers, tubing contact and loose screws.
c. Check for airflow
d. Call service for checking internal loose, inadequate lubrication and incorrect wirings