Bunn Hot Water Dispencer H3X Element 120V 1800W

Check the valve for coil action

Describe the sound heard from the dispense valve

Is there a blockage in the valve?

Enter the voltmeter reading in DC volts

Is the voltage present as described?

Is the dispenser wiring harness in good condition?

Is the control board operating properly?

Replace the Dispense Valve (PC & H3 Element Only)

Is the dispenser disconnected from the power source and allowed to cool?

Disconnect the dispenser from the power source

Voltage across the black wire on the thermostat and the white or red wire at the terminal block

If voltage is not present as described, refer to the Wiring Schematics and check the dispenser wiring harness

Voltage across the blue/black wire on the thermostat and the white or red wire at the terminal block when the thermostat is turned ON

Voltage present as described when thermostat is ON

Voltage not indicated when the thermostat is turned OFF

If voltage is not present as described, replace the thermostat

Warning: Ensure the dispenser is unplugged before starting the procedure

Both wires removed from the thermostat terminals

Top lid removed from the dispenser

Two #6-32 screws removed from the thermostat

New thermostat fastened to the mounting bracket

NOTE: Make sure that the capillary tube is away from any electrical termination and is not kinked

Grommet slid to the red mark on the capillary tube

Bulb inserted through the hole in the tank and grommet pressed firmly

Warning: Disconnect the dispenser from the power source before starting the test

Thermistor disconnected from J5 on control board

Resistance across thermistor (Ohm)

Was the resistance as described?

If resistance was not as described, replace the control board

Sign off on the steam sensor test

Remove all wires from the level control board

Remove two #8-32 screws holding level control board and mounting bracket to the component bracket

Install the new level control board and mounting bracket to the component bracket

Upload a photo of the reconnected wires

Sign off on the board replacement