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630460150
TROUBLESHOOTING
IMPORTANT: Only qualified personnel should service internal components or electrical wiring.
TROUBLESHOOTING COMPRESSORS
Trouble Probable Cause Remedy
Basically the compressor problems can be narrowed down to three areas of checkout.
THE COMPRESSOR WILL
NOT RUN
A. No voltage to the compressor
terminals.
A. Check circuit.
B. Low voltage. B. Below 90% of nameplate rated
voltage.
C. Problems in the compressor
electrical circuit.
C. See electrical checkout
instructions.
THE COMPRESSOR STARTS
BUT TRIPS REPEATEDLY ON
THE OVERLOAD
A. A. Check for proper fan operation
and clean condenser.
THE OVERLOAD
PROTECTOR
B. B. Check the compressor suction
and discharge pressures.
C. Voltage. C. Voltage should be within 10% of
the rated nameplate voltage.
D. High compressor amperage
draw.
D. It should never exceed 120% of
the rated nameplate amperage.
See electrical checkout
instructions.
THE COMPRESSOR RUNS
BUT WILL NOT
REFRIGERATE
A. Compressor not working. A. Check the compressor suctions
and discharge pressures. See
chart on page 13.