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12CI400A • 12HI400A
SensorSAFE model troubleshooting guide
Problem
Action
SensorSAFE Board LED
Status
Corrective Action
PWR
CLN
ICE/
WTR
Does not
dispense ice
and/or water.
Check
LEDs on the
SensorSAFE
control board.
OFF
OFF
OFF
Check circuit breakers and power switch.
Restore power or replace defective switch.
ON
ON
OFF
Press clean switch on lower left side of electrical
enclosure to return board to normal operation.
Place cup
under drop
zone (in front
of lens)
ON
OFF
OFF
Troubleshoot appropriate lens/sensor
and replace if required (see lens/sensor
troubleshooting).
ON
OFF
ON
Verify power on appropriate output terminal
(WTR or WM) on control board and replace
board if required. If board tests okay,
troubleshoot appropriate dispenser component.
Dispenses ice
and/or water
continuously.
Check LEDs
on control
board.
ON
OFF
ON
Troubleshoot appropriate lens/sensor
and replace if required (see lens/sensor
troubleshooting).
ON
OFF
OFF
If there is power on any output terminal 9WTR
or WM) on control board, replace board.
Board guide
LEDs, when illuminated, indicate the following: PWR (board power), CLN (cleaning, no dispensing cycle), ICE
(ice dispensing activated), WTR (water dispensing activated).
Terminals: LI (incoming power, hot), L2 (neutral terminals), WTR (power terminal for water solenoid), WM (power
terminal for wheelmotor), CLN (terminals for clean cycle switch).
Note: SOL terminal not used in 12 series dispensers.
Lens/sensor troubleshooting
1. Turn dispenser power switch off and remove slash panel.
2. Disconnect wires from WTR and WM terminals on board.
3. Gently remove sensor/mounting block from splash panel.
4. Inspect lens and sensor, clean if necessary.
5. Restore dispenser power and test sensor by passing hand in front of sensor.
6. If LED on board turns on, sensor is operational. Re-assemble dispenser.
7. If LED does not come on switch sensor leads on board and retest.
8. If opposite Led comes on – replace defective board.
9. If opposite Led does not come on – replace defective sensor.