Instruction manual

Symptoms and Possible Causes:

SYMPTOM POSSIBLE CAUSE

Unit won’t cool

Impellers/blowers 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

Undersized 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 Pentair

Technical Products at 800-896-2665.