–112–
DIAGNOSING AN ICE MACHINE HEAD SECTION
THAT WILL NOT RUN
If the water pump is energized but no ice is produced,
refer to “Diagnosing a Condensing Unit that Will Not
Run.”
1. Verify primary voltage is supplied to ice machine
head section and the fuse/circuit breaker is closed.
2. Verify control board fuse is okay. If the bin switch or
water level probe light functions, the fuse is okay.
3. Verify all bin switches function properly. A defective
bin switch can falsely indicate a full bin of ice.
4. Verify ICE/OFF/CLEAN toggle switch functions
properly. A defective toggle switch may keep the
ice machine in the OFF mode.
5. Verify low DC voltage is properly grounded. Loose
DC wire connections may intermittently stop the ice
machine.
6. Replace the control board.
Be sure steps 1-5 were followed thoroughly.
Intermittent problems are not usually related to the
control board.
High (line) voltage is applied to the control board at
all times. Removing control board fuse or moving the
toggle switch to OFF will not remove the power
supplied to the control board.
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