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DIAGNOSING A CONDENSING UNIT
THAT WILL NOT RUN
If the ice machine water pump is not energized, refer
to “Diagnosing an Ice Machine Head Section that Will
Not Run.”
1. Verify primary voltage is supplied to ice machine
condensing unit and the fuse/circuit breaker is
closed.
2. Verify the high-pressure cutout and low-pressure
cutouts are closed. The HPCO and LPCO are
closed if primary line voltage is present at the
contactor coil terminals.
3. Verify line voltage is present at the contactor coil.
4. Verify the contactor contacts are closed and line
voltage is present across all lines.
5. Refer to compressor diagnostics.
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