Wine-Mate Cooling Systems Troubleshooting Guide

Wine-Mate: Troubleshooting Solutions Guides

Questions?

Call us at 1.800.777.VINO.
*Please note our business hours: 
Mon-Fri: 8:00 a.m.-5:00 p.m.PST

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
a. Check power cord
b. No power from supply
b. Check receptacle and fuses
c. Incorrect or loose wirings
c. Check all wirings and connections
d. Low voltage
d. Contact an authorized electrician
e. Setting higher than ambient temperature
e. Lower temperature setting
f. Waiting for cut-in
f. Wait
g. Defrost light blinking
g. Unit is under defrost mode
h. Compressor light blinking
h. Unit is under anti-short cycle delay
i. Defective controller
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
a. Move the air probe away from the evaporator
b. Air probe in cold-air supply, displaying temperature ok
b. Move the air probe away from the cold-air supply
c. Failed controller and probe
c. Call service for diagnosis

6. Temperature high or not cooling and running continually

Possible Causes
Response
a. Improper cellar insulation & seal
a. Check insulation, gasket and door opening
b. Cellar too large
b. Check for excessive size
c. Ambient temperature too high
c. Check installation location
d. Exhaust restricted
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. Malfunctioning fans
e. Check for both evaporator and condenser fans
f. Evaporator or condenser airflow
f. Check for air restrictions, air short-circulation, grille directions
g. Dirty Condenser
g. Clean condenser
h. Iced evaporator
h. Defrost and reset temperature
i. Refrigeration system restriction
i. Call service
j. Refrigerant leak
j. Call service
k. Undercharge or overcharge
k. Call service
l. Failed components
l. Check compressor windings, start relay and overload protector

7. Unit running too long

Possible Causes
Response
a. Improper cellar insulation & seal
a. Check insulation, gasket and door opening
b. Exhaust restricted
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. Cellar too large
c. Check for excessive size
d. Ambient temperature over 90°F
d. Check for installation location
e. Dirty Condenser
e. Clean condenser
f. Improper condenser air flow
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
a. Check fan running time FON
b. Incorrect or loose wirings
b. Check all wirings and connections
c. Failed components
c. Check start relay, start capacitor, overload protector, compressor
d. Liquid refrigerant in the compressor
d. Call service

9. Compressor running but fan not running

Possible Causes
Response
a. Fan blade stuck
a. Check for proper clearance
b. Incorrect or loose wirings
b. Check all wirings
c. Failed motors
c. Call service

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

Possible Causes
Response
a. Failed components
a. Check compressor windings, start relay and overload protector.
b. Improper condenser airflow
b. Check for condenser fan
c. Dirty condenser
c. Clean condenser
d. Overcharge of refrigerant
d. Call service for removing refrigerant
e. Discharge or suction pressure too high
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
a. Raise the setting
b. Low ambient temperature
b. Move to another location
c. Air probe fault
c. Change a new one
d. Temperature controller fault
d. Change a new one

13. Evaporator freezing up

Possible Causes
Response
a. Evaporator air flow restriction
a. Check for fans and air flow
b. Low temperature setting
b. Check for set-point
c. Low ambient temperature
c. Change defrost cycle
d. Defective controller or probe
d. Check for controller and probe
e. Not stopping due to air leak, high ambient temperature, condenser air flow restriction or pull-down cooling
e. Check for seal, door opening, ambient temperature and condenser air flow
f. Initially working then stopping, moisture in the system
f. Call service
g. Refrigerant low or leaking
g. Call service
h. Capillary tube or expansion valve blockage
h. Call service

14. Water leak

Possible Causes
Response
a. Air leak in the wine cellar causing excessive condensate
a. Check for air leak
b. High humidity causing excessive condensate
b. Use drain line
c. Evaporator air flow restriction
c. Check supply air flow or air TD
d. Water passages restricted
d. Clean the drip tray
e. Drip tray leak (No water overflow but water leak)
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
a. Check for any air leak
b. High humidity causing excessive condensate
b. Use drain line
c. Water passages restricted
c. Clean the drip tray

16. Circuit tripping

Possible Causes
Response
a. Incorrect fuse or breaker
a. Check for proper fuse or breaker
b. Incorrect wirings
b. Check for wirings and connections
c. Failed components
c. Call service

17. Noise operation

Possible Causes
Response
a. Mounting area not firm
a. Add support to improve installation
b. Loose parts
b. Check fan blades, bearings, washers, tubing contact and loose screws.
c. Compressor overloaded due to high ambient temperatures or airflow restriction
c. Check for airflow
d. Defective components
d. Call service for checking internal loose, inadequate lubrication and incorrect wirings