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User Manual for WTR Refrigerators
HELP
Trouble Diagnosis for the User
Malfunction
No cooling - unit is silent
Unit cools but seems to be on all the time
Space temperature too high
Space temperature too low
Trouble Diagnosis for the Technician
No cooling - compressor does not hum
No cooling - compressor hums but does not
start
No cooling - compressor starts but shuts
off
No cooling - compressor cycles on and off
Unit cools but turns on and off frequently
Makes excessive noise
22
Possible Cause
Unit not plugged in.
Fuse or circuit breaker tripped.
Power cord plug loose in outlet.
Dirty condenser
Dirty condenser
Evaporator iced over Unit in high
temperature environment
Temperature control
Temp control stuck in open position
Low voltage to unit.
Compressor starting system failure
Compressor start relay failure Compressor
start capacitor failure
Overheating weak overload
No product in cabinet. Temperature control
defective Refrigeration issue
Tubing rattle Loose parts
Bent or broken fan blade Noisy fan motor
Beverage-Air
Beverage-Air
Likely Solution
Connect to proper voltage circuit Replace
fuse or reset breaker.
Check outlet for loose connection, replace
as needed
Clean condenser
Clean condenser Defrost unit
Reduce temperature of room
Adjust or replace control
Replace temp control.
Check voltage, correct as needed. Check
start relay and start capacitor. See next
step.
Replace relay. Replace capacitor.
Clean condenser, check fan motor and
blade. Check refrigerant charge. Replace
overload.
Fill cabinet Replace control
Have system checked
Check tubing for routing Check for loose
components Replace fan blade
Replace fan motor
Rev. 04/22
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