Follett HMF1400R Operation And Service Manual page 28

Ice machine disposition
Legend:
ON
5. Ice machine is not making ice.
Locked in PURGE.
.
6. The CPU is not fl ashing.
.
7. Ice machine is making ice.
Excessive water in bin or
coming into bin from transport
tube.
.
8. Ice machine is not making ice.
Lo water.
.
28
Possible causes
OFF ON or OFF
1. A self-fl ush occurred but could
not drain evaporator due to a
failed drain solenoid valve.
2. A self-fl ush occurred but could
not drain evaporator due to water
reservoir or ice machine not
being level.
1. Processor has been damaged.
1. Failed water sensors. Processor
assumes there is no water when
there is water.
2. Blocked reservoir vent.
3. Defective water feed solenoid
valve. Stuck in open position.
1. Water supply is turned off.
2. Low water pressure.
3. Defective water feed solenoid
valve. Stuck in closed position.
4. No water feed output from
PC board.
Corrective action
FLASHING
1. Replace drain solenoid valve.
2. Level ice machine. Check water
reservoir to make sure it is not
tilted towards the compressor.
1. Replace PC board.
1. Clean or replace water probe
assembly. Check wiring
connections.
2. Clean or replace vent tubes.
3. Replace water feed solenoid
valve.
1. Turn water supply on. If evaporator
was completely empty the reset
button may have to be pressed to
restart the ice machine.
2. Ice machine will eventually start
when water reaches normal lo level.
3. Replace water feed solenoid valve.
4. Replace PC board.
Horizon 1400R/N Ice Machines