Bunn HC-3 Frother and Whipper Motor, Steam Collector #6-32 Screw Mixing Chamber, Ring

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SERVICE (cont.)

FROTHER AND WHIPPER MOTOR

P1203.45

FIG. 11 FROTHER AND WHIPPER MOTOR

Location:

The frothers are located behind the dispenser door, mounted on the front of the front panel inside the whipper chamber.

The whipper motors are located on the back side of the front section of the front panel.

NOTE: The center position is for HC-3 Models only.

Test Procedure:

1. Disconnect the dispenser from the power source.

2. Disconnect the white/violet and white wires on the right motor, white/blue and white wires on the center motor or the white/red and white wires on the left motor from the black leads on the motors.

3. Press and hold the appropriate dispense switch and check the voltage across the disconnected harness wires with a voltmeter. Connect the dis- penser to the power source. The reading must be:

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a)120 volts ac for two wire 120 volt models.

b)120 volts ac for three wire 120/208 volt or 120/ 240 volt models.

c)240 volts ac for two wire 240 volt models.

4.Disconnect the dispenser from the power source.

If voltage is present as described, replace the motor. If voltage is not present as described, refer to the wir- ing diagrams and check the dispenser wiring harness.

 

 

 

 

 

 

 

 

1

2

 

12

 

 

 

 

 

 

 

 

 

11

 

 

 

 

 

 

 

 

 

10

9

8

7

6

5

4

3

 

 

FIG. 12 MIXING/WHIPPER CHAMBER

P1206

 

 

 

 

 

COMPONENTS

 

 

1.

Steam Collector

 

 

7.

#6-32 Screw

 

2.

Mixing Chamber

 

 

8.

Receptical w/Seal

3.

Dispense Tip

 

 

 

9.

Teflon Washer

 

4.

Whipper Chamber

 

 

10.

O-Ring

 

5.

O-Ring

 

 

 

 

11.

#8-32 Acorn Nut

6.

Frother

 

 

 

 

12.

Motor Assy.

 

Removal, Cleaning and Replacement (Refer to Fig. 12):

1.Open the dispenser door.

2.Remove the steam collector (1) by pulling it for- ward and at the same time twisting it clockwise.

3.Pull the mixing chamber (2) out of the whipper chamber (4).

27591 031597

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Contents Bunn HC-2 Serial # HC00025000 UPWarranty Introduction27620.0000 User Notices12368.0002 Initial SET-UP Electrical RequirementsElectrical HOOK-UP Plumbing RequirementsCleaning AdjustmentsDispenser USE Cold Beverage SET-UP OptionalHopper Dispense Rate of Product TroubleshootingDraining the HOT Water Tank Troubleshooting Problem Probable Cause RemedyProblem Problem Probable Cause Dripping from dispense tip Lime build-upOn stainless steel surfaces can Ing in serious leaksWeak product Water temperature Testing procedure. See30 or Tip with a thermometerTroubleshooting Problem Probable Cause RemedyService Component AccessContents Auger Drive ComponentsAuger Drive Components If voltage is present as described, proceed to #5Washer Auger Motor Locknut Dust Seal Shoulder Screw Hopper AssyService Right HC-2Location Test ProcedureBallast Remove temperature probe from the tank Control ThermostatLocation Mechanical Thermostat Electronic Thermostat OptionalControl Thermostat Thermostat TerminalsDispense Switch Dispense SwitchTest Procedures FANFrother and Whipper Motor Steam Collector #6-32 Screw Mixing ChamberRing Pull the mixing chamber 2 out of the whipper chamberFrother and Whipper Motor Whipper Motor TerminalsHopper Delay Board Reconnect the eight pin connector to the hopper delay boardHOT/COLD Switch Optional Disconnect the wires from the switch termi- nalsDoor Assy Lamp Replacement Refer to FigLamp Holder Service Level Control Board and Level Probe Level Control Board and ProbeLevel Board Terminals Limit ThermostatOverflow Protection Switch Overflow Protection SwitchRUN/RINSE Switch RUN/RINSE SwitchSolenoid Valve Cold Water Optional Cold Water Solenoid ValveCold Water Solenoid Terminals Solenoid Valves DispenseSolenoid Valve Inlet Solenoid Valves DispenseDisconnect the water line from the solenoid valve Solenoid Valve Inlet Tank HeaterTank Heater Refer to when reconnecting the wires to the tank heaterTank Heater Switch Tank Heater Switch Tank Heater Switch TerminalsTransformer 240V TWO Wire MODELSONLYcontSchematic Wiring Diagram HC-2, & HC-3 Schematic Wiring Diagram HCA-2, & HCA-3