Bunn Brewer STF

Remove the WHI/YEL and WHI/ORA wires from the start switch

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

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

Sign off on the Brewer Start Switch Replacement

Disconnect the brewer from the power source

Remove the WHI/RED wire from the 'A' terminal and the WHI/GRN wire from the 'B' terminal on the relay

Check for continuity across the 'A' and 'B' terminals

If continuity is present as described, reconnect the WHI/RED and WHI/GRN wires to the relay

If continuity is not present as described, replace the relay

Remove the WHI/RED wire from terminal 5 and the WHI/BLU wire from terminal 7 on the relay

Check for continuity across terminals 5 and 7 by manually closing the relay contact. Continuity must be present until contact is released

If continuity is present as described, reconnect the WHI/RED and WHI/BLU wires to the relay, relay is operating properly

If continuity is not present as described, replace the relay

Remove all wires from the timer

Remove the circuit board and dial plate from the brackets

Install the new timer circuit board as described in Late Model Timer Section

Install the Timer Setting decal, provided with the replacement timer kit, on the back side of the front access panel

Sign off on the timer replacement

All wires removed from the level control board

Two #8-32 screws and lockwashers removed from level control board

New level control board installed to the component bracket

Lockwashers are between the level control board and the component bracket

Sign off on the Brewer Liquid Level Control Board Replacement

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

Brewer disconnected from power source

Thermal cutoff disconnected from the tank heater terminal and the limit thermostat or wiring harness

Continuity across the thermal cutoff terminals (ohmmeter reading)

Continuity present across the thermal cutoff terminals

If continuity is not present, replace the thermal fuse

Sign off on the Brewer Thermal Cut-Off Test