Manitowoc EC18, Technician'S Handbook

Page: 43 / 184

Part Number 80-1479-3 10/10 31
Troubleshooting
All Models
ICE MACHINE WILL NOT RUN
Nothing on the ice machine will operate (compressor,
water pump, condenser fan motor). If any component
runs this procedure can be skipped, move on to the
next diagnostics (water pump won’t run, compressor
won’t run, etc).
1. Place the toggle switch in the clean position. If the
water pump runs begin with toggle switch
diagnostics. If water pump does not run place
toggle switch in ice position.
2. Verify correct voltage is present and matches
nameplate voltage.
3. High pressure switch must be closed on water
cooled ice machines — move on to #4 if air cooled
ice machine (If you have voltage at L1 and no
voltage at #15 on the Bin Thermostat, which is easy
to access, the HPCO is open).
4. Bin thermostat must be closed before any
components can be energized. Check for voltage

at wires #15 and #64.
4