CellarMate Wine Cellar Climate Control - Advanced Troubleshooting; Evaporator Coil Freezing; Persistent High Pressure Switch Trips; Rapid Unit Cycling

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CellarMate Manual Page 35

Advanced Troubleshooting

IMPORTANT

This section is for qualified refrigeration service technicians, only. The technician should

repeat the previous troubleshooting steps before these more technical solutions.

Evaporator Coil is Freezing

Possible Cause Solution

Charge too low Check sight glass

Check for leaks

Add refrigerant

TXV malfunctioning Repair or replace

High Pressure Switch Keeps Opening Even After Checking for

Obstructions and Dirty Filters/Coils

Possible Cause Solution

Condenser fan not operating Repair or replace

Defective switch Replace

Unit Cycles On and Off More than 8 Times/Hour

Possible Cause Solution

Thermostat malfunctioning Refer to the thermostat guide

Low suction pressure Check low pressure switch

Check pressure and adjust superheat

High Pitched or Loud Rubbing Noise, Clanking, or Vibration

Possible Cause Solution

Fans loose or malfunctioning Repair or replace

Excessive compressor vibration Replace

TXV malfunctioning Repair or replace

Replacing the Blowers

When replacing the fan or motor, replace the fan and motor as a unit. Do not remove

the motor from the impeller wheel.