Service manual

UC 701 Series Continuous Flow Icemaker Installation and Service Manual

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 compr

essor ter-

minals.

B. Low voltage

C. Problems in the compressor elec-

trical circuit.

A. Check circuit.

B. Below 90% of nameplate rated

ltage

C. See electrical checkout instruc-

tions.

THE COMPRESSOR STARTS BUT

TRIPS REPE

ATEDLY ON THE

OVERLOAD PROTECTOR

A. Fan / condenser problem.

B. Suction and discharge problem.

C. Voltage.

D. High compressor amperage draw.

A. Check for proper fan operation

d clean condenser.

B. Check the compressor suction and

discharge pressures

C. Voltage should be within 10% of

the r

ated nameplate voltage.

D. It should never exceed 120% of the

rated nameplate amperage. See

electrical checkout instructions.

THE COMPRESSOR RUNS BUT

WILL NO

T REFRIGERATE

A. Compressor not working A. Check the compressor suctions

and discharge pressures. See

chart on page 17.