Bunn POWDER AUTO FILL service manual Main Power ON/OFF Switch

Page 22

SERVICE (cont.)

MAIN POWER ON/OFF SWITCH

P1923

FIG. 15 MAIN POWER ON/OFF SWITCH

Location:

The main power switch is located inside the dis- penser on the right of the whipper motor mounting panel.

Test Procedure:

1.Disconnect the dispenser from the power source.

2.Disconnect the black wires from the main wiring harness.

3.With the switch in the ON (lower) position check for continuity between the center and the upper termi- nal. With the switch in the OFF (upper) position no continuity should be present between center and upper terminals.

If continuity is present as described, the main power switch is operating properly.

If continuity is not present as described, replace the switch.

Removal and Replacement:

1.Disconnect the dispenser from the power source.

2.Open the dispenser door and remove the hopper assembly out the front of the dispenser.

3.Remove the four #8-32 screws securing the hopper support panel to the auger motor mounting panel and the whipper motor mounting panel.

4.Slowly lift the hopper support panel up and discon- nect the red/black and green wires from the hopper switch.

5.Remove the switch mounting nut on the front of the whipper motor mounting panel.

6.Remove switch with wires attached from the rear of the whipper motor mounting panel.

7.Remove the wires from the switch terminals and discard switch.

8.Connect the wires to the new switch, refer to Fig. 16.

9.Push new switch through hole in the whipper motor mounting panel and secure with face nut.

10.Connect the red/black and green wires to the hop- per switch. See Fig. 10 on page 17.

11.Install the hopper support panel to the auger motor mounting panel and the whipper motor mounting panel using the four #8-32 screws.

12.Install the hopper assembly.

BLK from Power

 

Cord

 

BLK from Main

 

Harness

 

FIG. 16 MAIN POWER ON/OFF

P1907

 

SWITCH TERMINALS

 

22

29793 061599

 

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Contents Bunn Powder Auto Fill Initial SET-UP WarrantyIntroduction User Notices Operating Instructions Adjustments Recommended Daily Cleaning and Maintenance Tips CleaningRinse and dry each item thoroughly before reas- sembling Dispense Fault ListNormal operation Powder Auto-Fill ready to Door not closedTroubleshooting Problem Probable CauseRemedy ProblemCDS product tastes watery or sugary Problem Probable Cause Remedy Install a regulator if necessary to Procedures. SeeImproper adjustment of product Product overflows CDS hopper Control Board and ProbeService Component AccessRetainer Clip Auger Drive ComponentsHopper Lid Spacer Dust Seal Hopper BaseDiagrams and check wiring harness Auger Drive MotorFrother and MIXING/WHIPPER Chamber Mixing ChamberWhipper Motor Volts ac for 120 volt models Volts ac for 230 volt CE modelsInstall dispense tip into the bottom of the whipper chamber Whipper MotorIf voltage is present as described, proceed to #5 If voltage is present as described, proceed to #9 Test Procedure Low Product Detect Instal the new control board using the four #6-32 keps nuts Remove the control boardDisconnect the wires from the switch terminals TEST/SERVICE SwitchLocation Main Power ON/OFF Switch Main Power ON/OFF SwitchLamp Cord Assembly Refer to when reconnecting the wiresDisconnect the lamp cord from the lamp cord connector Lamp Cord ConnectorRemove new nut and washer from new lamp cord connector Lamp HOLDER/SOCKET Assembly Close the dispenser doorTransformer TransformerPotentiometer PotentiometerHopper Level Indicator Hopper Level IndicatorHopper Switch Hopper SwitchDoor Switch Door SwitchAdjustments Pressure Regulator and Needle ValveDispense Solenoid Valve Dispense Solenoid Valve LocationWiring Diagrams Schematic Wiring Diagram PAF BLK REDWiring Diagrams Schematic Wiring Diagram Pafa
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