9 10-1008-214 rev 1
Symptoms and Possible Causes:
SYMPTOM POSSIBLE CAUSE
Unit won’t cool * Blowers/impellers 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 relay
* 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)
For additional technical information (i.e., amp draw, pressures, temperatures)
contact MAI at 317-257-6811.
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