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10-1008-177 Rev 1
Symptoms and Possible Causes:
SYMPTOM
POSSIBLE CAUSE
Unit won’t cool
* Clogged fins on coil(s)
* Dirty filters
* Blowers/fans not running
* Compressor not running
* Compressor runs, but has bad valves
* Loss of refrigerant
Compressor tries to start but won’t run * Low line voltage at start. Should be +/-10% rated voltage
* Compressor motor stuck
* Bad contactor
* Bad overload switch
* Bad run/start capacitor
Unit blows breakers
* Under sized breaker/fuse or not time delayed
* Short in system
Getting water in enclosure
* Drain plugged
* Drain tube kinked
* Enclosure not sealed (allowing humidity in)
* Mounting gasket damaged
For additional technical support contact McLean Cooling at 866-545-5252.
