Troubleshooting - Cornelius 500 Series Installation And Service Manual

Continuous Flow Icemaker Installation and Service Manual
IMPORTANT: Only qualified personnel should service internal components or electrical wiring.
Trouble
Basically the compressor problems can be narrowed down to three areas of checkout.
The Compressor will not run
The compressor starts but trips
repeatedly on the overload protector
The compressor runs but does not
refrigerate
Publication Number: 638085278

TROUBLESHOOTING

Troubleshooting Compressors
Probable Cause
A. No voltage to the compressor
terminals.
B. Low voltage
C. Problems in the compressor
electrical circuit
A.
B.
C. Voltage
D. High compressor amperage draw
A. Compressor not working
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Remedy
A. Check circuit
B. Below 90% of nameplate rated
voltage
C. See electrical checkout
instructions
A. Check for proper fan operation and
clean condenser
B. Check the compressor suction and
discharge pressures
C. Voltage should be within 10% of
the rated nameplate voltage
D. It should never exceed 120% of the
rated nameplate amperage. See
electrical checkout instructions.
A. Check the compressor suctions
and discharge pressures. See
chart on page 15.
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