Dispenser Troubleshooting - Sensorsafe Models; Sensorsafe Model Troubleshooting Guide - Follett 12 Installation, Operation And Service Manual

SensorSAFE model troubleshooting guide

Problem Action
Does not Check
dispense ice LEDs on the
and/or water. SensorSAFE
control board.
Place cup
under drop
zone (in front
of lens)
Dispenses ice Check LEDs
and/or water on control
continuously. 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.
26
SensorSAFE Board LED
Status
ICE/
PWR CLN WTR
OFF OFF OFF
ON ON OFF
ON OFF OFF
ON OFF ON
ON OFF ON
ON OFF OFF
12CI400A • 12HI400A 220 V 60 Hz/230 V 50 Hz Dispensers
Corrective Action
Check circuit breakers and power switch.
Restore power or replace defective switch.
Press clean switch on lower left side of electrical
enclosure to return board to normal operation.
Troubleshoot appropriate lens/sensor
and replace if required (see lens/sensor
troubleshooting).
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.
Troubleshoot appropriate lens/sensor
and replace if required (see lens/sensor
troubleshooting).
If there is power on any output terminal 9WTR
or WM) on control board, replace board.