WaterLogic WL900 User manual

WL900 Manual Page 66 – Revision: 5-12-2021
ADVANCED OPERATIONS: ACCESS THE ICE TEMP SENSOR
In the event of a cold circuit failure, the Ice Temp Sensor may need to be replaced.
Described below is are the steps to access the sensor.
1. To access the Ice Temp Sensor, remove the top cover by removing the two screws at the
rear and sliding the cover back and off the unit. Then, remove the two screws holding
the upper front panel in place, lift and pull away from the unit, and set aside.
2. Remove the screws holding the back-silver panel in place. Remove and set aside.

WL900 Manual Page 67 – Revision: 5-12-2021
3. To access the Ice Temp Sensor, remove foam pad to reveal the coolant lines leading
into the ice bin. Locate the left coolant line and carefully snip or cut the zip tie to
release the black foam tubing. Pull the foam tubing down, or cut a slit longitudinally,
and pull the foam tube away from the copper lines.
4. The blue wire shown above terminates at the
Cold Temp Sensor. Cut away the black
electrical tape and remove the sensor. If
replacing, trace the wire back to the PCB and
unplug from the board. When placing the
new sensor, wrap with electrical tape to
secure it in the tubing sleeve and return all
foam pieces to original position.