Service Manual

Part Number: 000015431 Rev 02 6/20 99
DIAGNOSING A CONDENSING UNIT
THAT WILL NOT RUN
If the ice machine water pump is not energized, refer to
“Diagnosing an Ice Machine that Will Not Run.”
1. Verify primary voltage is supplied to the ice machine
condensing unit and the fuse/circuit breaker is closed.
2. Verify the high-pressure control is closed.
3. Verify the low-pressure control is closed.
4. Verify voltage is present at terminals 1 & 2 on the
compressor time delay relay.
5. Verify the time delay period has expired and test for
line voltage at compressor time delay relay terminals
1 & 3.
6. Verify line voltage is present at the contactor coil.
7. Verify the contactor contacts are closed and line
voltage is present across all lines.
8. Refer to compressor diagnostics.