Bunn POWDER AUTO FILL Product overflows CDS hopper Control Board and Probe, Frother, Auger Spring

Page 11

TROUBLESHOOTING (cont.)

 

 

 

PROBLEM

PROBABLE CAUSE

REMEDY

Product overflows CDS hopper

1. Control Board and Probe

Refer to Service- Control Board and

 

 

 

Probe for testing procedures. See

 

 

 

page 18

 

2.

Dispense Solenoid Valve

Refer to Service- Dispense Solenoid

 

 

 

Valve for testing procedures. See

 

 

 

page 32

Weak product

1. Whipper Motor

Refer to Service- Whipper Motor for

 

 

 

testing procedures. See page 16

 

2.

Frother

Refer to Service- Frother for testing

 

 

 

procedures. See page 15

 

3.

Dispense Solenoid Valve

Refer to Service- Dispense Solenoid

 

 

 

Valve for testing procedures. See

 

 

 

page 32

 

4.

Auger Drive

Refer to Service- Auger Drive for

 

 

 

testing procedures. See page 13

 

5.

Auger Spring

Refer to Service- Auger Spring for

 

 

 

testing procedures. See page 13

 

6.

Auger Motor

Refer to Service- Auger Motor for

 

 

 

testing procedures. See page 14

 

7. Improper adjustment of product

Set the product mix ratio per Adjust-

 

mix ratio

ments. See page 5

Dispenser is making unusual noises

1. Plumbing lines

Plumbing lines should not be rest-

 

 

 

ing on the counter top.

 

2.

Water supply

A) The dispenser must be connected

 

 

 

to a cold water line.

 

 

 

B) Water pressure to the dispenser

 

 

 

must not exceed 90 psi (620 kPa).

 

 

 

Install a regulator if necessary to

 

 

 

lower the working pressure to ap-

 

 

 

proximately 50 psi (345 kPa).

Display not lit

1. Lamp

Refer to Service- Lamp for testing

 

 

 

procedures. See page 25

 

2.

Lamp Holder

Refer to Service- Lamp Holder for

 

 

 

testing procedures. See page 25

11

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Contents Bunn Powder Auto Fill Introduction WarrantyInitial SET-UP User Notices Operating Instructions Adjustments Rinse and dry each item thoroughly before reas- sembling CleaningRecommended Daily Cleaning and Maintenance Tips Door not closed Fault ListNormal operation Powder Auto-Fill ready to Dispense Problem Probable Cause TroubleshootingCDS product tastes watery or sugary ProblemRemedy Problem Probable Cause Remedy Product overflows CDS hopper Control Board and Probe Procedures. SeeImproper adjustment of product Install a regulator if necessary toComponent Access ServiceSpacer Dust Seal Hopper Base Auger Drive ComponentsHopper Lid Retainer ClipAuger Drive Motor Diagrams and check wiring harnessMixing Chamber Frother and MIXING/WHIPPER ChamberVolts ac for 120 volt models Volts ac for 230 volt CE models Whipper MotorWhipper Motor Install dispense tip into the bottom of the whipper chamberIf voltage is present as described, proceed to #9 If voltage is present as described, proceed to #5Test Procedure Low Product Detect Remove the control board Instal the new control board using the four #6-32 keps nutsLocation TEST/SERVICE SwitchDisconnect the wires from the switch terminals Main Power ON/OFF Switch Main Power ON/OFF SwitchRefer to when reconnecting the wires Lamp Cord AssemblyRemove new nut and washer from new lamp cord connector Lamp Cord ConnectorDisconnect the lamp cord from the lamp cord connector Close the dispenser door Lamp HOLDER/SOCKET AssemblyTransformer TransformerPotentiometer PotentiometerHopper Level Indicator Hopper Level IndicatorHopper Switch Hopper SwitchDoor Switch Door SwitchPressure Regulator and Needle Valve AdjustmentsDispense Solenoid Valve Location Dispense Solenoid ValveBLK RED Wiring Diagrams Schematic Wiring Diagram PAFWiring Diagrams Schematic Wiring Diagram Pafa