Transformer 240V TWO Wire, MODELSONLYcont

SERVICE (cont.)

TRANSFORMER (240V TWO WIRE

MODELSONLY)(cont.)

Removal and Replacement:

1.Disconnect the wires from the transformer.

2.Remove the two #8-32 keps nuts securing the transformer to the dispenser base.

3.Remove and discard the transformer.

4.Install new transformer over the two weld studs on the dispenser base and secure with two #8-32 keps nuts.

5.Refer to Fig. 34 when renonnecting the wires.

RED & BLK to

Main Harness

BLK & WHI to

Fan

1 2 3

FIG.34 TRANSFORMER TERMINALS	P1288

36	27591 031597

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Image 36

Bunn HC-3 service manual Transformer 240V TWO Wire, MODELSONLYcont

Contents

Bunn HC-2 Serial # HC00025000 UP Warranty Introduction User Notices 12368.000227620.0000 Initial SET-UP Electrical RequirementsElectrical HOOK-UP Plumbing Requirements Cleaning AdjustmentsDispenser USE Cold Beverage SET-UP Optional Troubleshooting Draining the HOT Water TankHopper Dispense Rate of Product Troubleshooting Problem Probable Cause Remedy Problem Problem Probable Cause Dripping from dispense tip Lime build-upOn stainless steel surfaces can Ing in serious leaks Weak product Water temperature Testing procedure. See30 or Tip with a thermometer Troubleshooting Problem Probable Cause Remedy Service Component AccessContents Auger Drive Components Auger Drive Components If voltage is present as described, proceed to #5Washer Auger Motor Locknut Dust Seal Shoulder Screw Hopper Assy Service Right HC-2 Test Procedure BallastLocation Remove temperature probe from the tank Control ThermostatLocation Mechanical Thermostat Electronic Thermostat Optional Control Thermostat Thermostat Terminals Dispense Switch Dispense Switch Test Procedures FAN Frother and Whipper Motor Steam Collector #6-32 Screw Mixing ChamberRing Pull the mixing chamber 2 out of the whipper chamber Frother and Whipper Motor Whipper Motor Terminals Hopper Delay Board Reconnect the eight pin connector to the hopper delay board HOT/COLD Switch Optional Disconnect the wires from the switch termi- nals Lamp Replacement Refer to Fig Lamp HolderDoor Assy Service Level Control Board and Level Probe Level Control Board and Probe Level Board Terminals Limit Thermostat Overflow Protection Switch Overflow Protection Switch RUN/RINSE Switch RUN/RINSE Switch Solenoid Valve Cold Water Optional Cold Water Solenoid Valve Cold Water Solenoid Terminals Solenoid Valves Dispense Solenoid Valves Dispense Disconnect the water line from the solenoid valveSolenoid Valve Inlet Solenoid Valve Inlet Tank Heater Refer to when reconnecting the wires to the tank heater Tank Heater SwitchTank Heater Tank Heater Switch Tank Heater Switch Terminals Transformer 240V TWO Wire MODELSONLYcont Schematic Wiring Diagram HC-2, & HC-3 Schematic Wiring Diagram HCA-2, & HCA-3

SERVICE (cont.)

TRANSFORMER (240V TWO WIRE

MODELSONLY)(cont.)

FIG.34 TRANSFORMER TERMINALS