Bunn Brewer TW

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

Voltage across the white/blue and white/violet wires on the dilution solenoid terminals when the TEA/OFF/COFFEE switch is in the TEA position and the START switch is momentarily placed in the lower position

Voltage is 120 volts ac for two wire 120 volt models and three wire 120/208 volt models

If voltage is not present as described, check the wiring harness

Continuity across the coil terminals

If continuity is not present as described, replace the solenoid valve

Listen carefully in the vicinity of the solenoid valve for a clicking sound as the coil magnet attracts

Disconnect the brewer from the power source

Check the voltage across the blue wire on the control thermostat and the white wire on the tank heater for 120 volt two wire models or red wire on the tank heater for 120/208 volt three wire models

Connect the brewer to the power source

Disconnect the brewer from the power source

Check the brewer wiring harness if voltage is not present as described

Locate the black wire on the control thermostat

Gently remove the capillary bulb and grommet from the tank

Check the voltage across the black wire of the control thermostat and the white wire on the tank heater for 120 volt two wire models or red wire on the tank heater for 120/208 volt three wire models when the control thermostat is turned fully clockwise

Connect the brewer to the power source

Remove all wires from solenoid valves

Turn off the water supply to the brewer

Disconnect the water lines to and from the solenoid valves

Remove the two #8-32 keps nuts holding the mounting bracket to the brewer base

Remove the two #10-32 slotted-head screws holding the iced tea brew solenoid valve to the mounting bracket

Securely install the new iced tea brew solenoid valve to the mounting bracket

Attach the mounting bracket to the brewer base

Securely fasten the water lines to and from the solenoid valves

Disconnect the brewer from the power source

Remove the wires from all four terminals

Check for continuity across the two terminals on the right side of the switch when it is held in the lower position. Continuity must not be present across these terminals in the upper position

If continuity is present as described, what is the next step?

Check for continuity across the two terminals on the left side of the switch when it is held in the lower position. Continuity must not be present across these terminals in the upper position

If continuity is present as described, what is the next step?

Sign off on the Brewer Start Switch Test

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 the switch captive in the hood

Sign off on the switch replacement