Bunn Coffee Machine CWT no-F

Warning: Ensure the coffee machine is unplugged before starting the procedure

Blue wire and white/red wire removed from the start switch

Clips inside the hood compressed and start switch pushed through the opening

New switch pushed into the opening and clips spread to hold the start switch in the hood

Wires reconnected to the new start switch

Sign off on the start switch replacement

Warning: Ensure the coffee machine is unplugged before starting the procedure

All wires removed from limit thermostat terminals

Limit thermostat slid out from under the retaining clip and removed

New limit thermostat slid into the retaining clip

Wires reconnected to the new limit thermostat

Sign off on the thermostat replacement

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

White or red wire removed from the upper terminal and black wire from the center terminal

Voltage across the white or red wire and the black wire

If voltage is not as described, refer to the Wiring Diagrams and check the brewer wiring harness

Black wire removed and wire from the lower terminal removed

Continuity present across the center and lower terminal with the switch in the 'ON' position

Continuity not present when the switch is in the 'OFF' position

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

Disconnect the brewer from the power source

Use the white or red wire to the terminal block and the white/red, brown/black or violet wire to the 'ON/OFF' switch

Check voltage across the white or red and white/ red, brown/black or violet with a voltmeter with the 'ON/OFF' switch in the 'ON' position

Disconnect the brewer from the power source

If voltage is present as described, proceed to #5. If voltage is not present as described, check brewer wiring harness

Check the continuity across the two terminals on the warmer element

If continuity is present as described, reconnect the white or red and white/red, and brown/black or violet wires on the warmer element. If continuity is not present as described, replace the warmer element

Remove the wires from the switch terminals

Compress the clips inside the hood and gently push the switch through the opening

Push the new switch into the opening and spread the clips to hold switch in the hood

Sign off on the switch replacement