Dispenser Troubleshooting - Sensorsafe Models - Follett 12 Series Installation, Operation And Service Manual

Troubleshooting the dispenser – SensorSAFE models
Problem: Does not dispense ice and/or water
Action
Check LEDs on
control board.
Place cup under
drop zone.
Troubleshooting the dispenser – SensorSAFE models
Problem: Dispenses ice and/or water continuously
Action
Check LEDs on control
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.
LED status
PWR CLN ICE/WTR
OFF OFF
ON ON
ON OFF
ON OFF
LED status
PWR CLN ICE/WTR
ON OFF
ON OFF
OFF Check circuit breakers and power switch. Restore
power or replace defective switch.
OFF Press clean switch on lower left side of electrical
enclosure to return board to normal operation.
OFF Troubleshoot appropriate lens/sensor and replace
if required (see Lens/Sensor Troubleshooting).
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.
ON Troubleshoot appropriate lens/sensor
and replace if required (see Lens/Sensor
Troubleshooting).
OFF If there is power on any output terminal (WTR or
WM) on control board, replace board.
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Solution
Solution