Owner's Manual

Horizon 1000R/N Ice Machines 27
Troubleshooting
Please see “Service” section for a description of each function.
Ice machine disposition Possible causes Corrective action
ON OFF
Legend:
ON or OFF FLASHING
1. Ice machine is in running
condition but not making ice.
POWER LOW BIN AUGER ON REFRIG ON PURGE TIME DELAY CLEANING SERVICE HI AMPS HI PRESS DRAIN CLOG HI WATER CPU LO WATER
1. Defective compressor.
2. Defective start relay.
3. Defective start capacitor.
4. Defective run capacitor.
5. Defective main contactor.
6. No output from PC board.
7. Machine in Purge cycle.
1. Replace compressor.
2. Replace start relay.
3. Replace start capacitor.
4. Replace run capacitor.
5. Replace main contactor.
6. Replace PC board.
7. Check for Purge operation.
2. Machine in TIME DELAY without
full bin.
POWER LOW BIN AUGER ON REFRIG ON PURGE TIME DELAY CLEANING SERVICE HI AMPS HI PRESS DRAIN CLOG HI WATER CPU LO WATER
1. Ice jamming due to improperly
installed transport tube causing
a false shuttle.
2. Shuttle stuck in up position.
3. Damaged or improperly installed
thermostat (open).
4. Transport tube backed-out of
coupling.
1. Correct transport tube routing.
2. Repair or replace shuttle
mechanism.
3. Replace or reposition thermostat.
4. Correct coupling installation.
3. Ice machine is not making ice.
HI AMPS.
.
1. Poor water quality causing ice to
jam auger.
2. Damaged shuttle mechanism or
thermostat (closed).
3. Kinked transport tube
(thermostat systems).
4. Intermittent drive output from
PC board. Evaporator will freeze
causing a hi amps error.
5. Gearmotor is unplugged.
1. Clean ice machine. Increase
 ushing frequency.
2. Replace or repair shuttle
mechanism/thermostat.
3. Straighten transport tube.
4. Replace PC board.
5. Plug in gearmotor.
4. Ice machine is not making ice.
Drain clog.
.
POWER LOW BIN AUGER ON REFRIG ON PURGE TIME DELAY CLEANING SERVICE HI AMPS HI PRESS DRAIN CLOG HI WATER CPU LO WATER
1. Drain hose kinked or plugged
causing water to back up.
2. Improper  oor drain routing/pitch
causing water to back up.
3. High TDS levels and leaking
drain solenoid may cause an
errant drain clog.
1. Remove kink or blockage from drain
hose.
2. Re-route  oor drain.
3. Clean area around drain sensor
and/or replace Drain solenoid valve.