Water Tank Float Switch - Bunn Nitron Cold Draft Service & Repair Manual

SERVICE (CONT.)

Water Tank Float Switch

FIG. 45 WATER TANK FLOAT SWITCH
Location:
The Water Tank Float Switch is located in the top
of the water tank lid.
Purpose:
The float switch is used to monitor and control water
level in the tank. The float in down position has the
internal contacts closed, up position opens the internal
contacts which stops the water tank fill process when
the On/Off dispense switch is in the On position.
Test Procedures:
Float down position: 0.00vdc or continuity across float
contacts.
Float up position: 5.0vdc or no continuity across float
contacts.
Removal and Replacement:
1. Disconnect the dispenser from the power source.
2. Turn off the water supply to the dispenser.
3. Disconnect the float switch from the main harness.
4. Remove the float switch from the tank lid.
5. Install a new float switch to the tank lid.
6. Reconnect the float switch to the main harness.
7. Reconnect the water lines to solenoid valve.
8. Restore power to the dispenser.
FIG. 46 SWITCH TERMINALS
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