Follett Horizon Elite HCD710A Operation And Service Manual page 29

Ice machine disposition
Legend:
ON
6. Ice machine is making ice.
Drain clog.
.
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.
9. LOW WATER blinking and low
bin.
ATTENTION!
To prevent circuit breaker overload, wait 5 minutes before restarting
this unit. This allows the compressor to equalize and the evaporator
to thaw.
HCD710A, HMD710A
Possible causes
OFF ON or OFF
1. Improper flow in drain system.
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 insufficient.
2. Low water pressure.
3. Defective water feed solenoid
valve. Stuck in closed position.
4. No water feed output from
PC board.
5. Plugged screen on inlet side of
fill solenoid.
6. Plugged check valve.
1. Refrigeration issue.
Corrective action
FLASHING
1. Correct/clean drain system.
1. Clean or replace water probe
assembly. Check wiring
connections.
2. Clean or replace vent tubes.
3. Replace water feed solenoid
valve.
1. Restore water supply and check
water filters. 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.
5. Remove and clean screen.
6. Remove and clean.
1. Check outdoor condensing unit
for proper function.
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