Bunn POWDER AUTO FILL service manual Hopper Switch

Page 29

SERVICE (cont.)

HOPPER SWITCH

P1933

FIG. 26 HOPPER SWITCH

Location:

The hopper switch is located under the hopper support panel.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Open the dispenser door and remove the hopper.

3.Manually engage and release the hopper switch actuator. The actuator must operate smoothly with- out binding at either end of its travel and an audible click must be detected near the mid point of travel.

If the actuator operates as described, proceed to #4. If the actuator does not operate as described, loosen the hopper switch mounting screws, realign the switch, and repeat the process. If the audible click cannot be detected, proceed to #4.

4.Disconnect the twelve pin connector (J1) from the control board.

5.Check continuity between pins 8 & 10 on the harness using an ohmmeter. Continuity must be present when the hopper is correctly installed. Continuity must not be present when the hopper is removed.

6.Reconnect the twelve pin connector (J1) to the control board.

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

If continuity is not present as described, proceed to #7.

7.Disconnect the wires from the hopper switch.

8.Check continuity between the N.O. and COM. termi- nals of the hopper switch using an ohmmeter. Continuity must be present when the actuator is engaged. Continuity must not be present when actuator is released.

If continuity is present as described, refer to wiring diagram and check the dispenser wiring harness.

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

Removal and Replacement:

1.Disconnect the dispenser from the power source.

2.Open the dispenser door and remove the hopper.

3.Remove the four #8-32 screws securing the hopper support panel.

4.Carefully lift the hopper support panel, remove the wires from the hopper switch, and remove the hopper support panel.

5.Noting the orientation of the switch, remove the two #4-40 screws, lockwashers and nuts securing the switch to the panel.

6.Attach the new switch to the panel taking care to orient it properly and secure with two #4-40 screws, lockwashers and nuts.

7.Manually engage and release the hopper switch actuator. The actuator must operate smoothly with- out binding at either end of its travel. If the actuator operates as described, proceed to #8. If the actua- tor does not operate as described, loosen the two screws and realign the switch and repeat the pro- cess.

8.Refer to Fig. 27 and reconnect the wires.

9.Install the hopper support panel and secure with four #8-32 screws.

GRN to Control Boad (J1-8)

RED/BLK to Control Board (J1-10)

P1904

 

FIG. 27 HOPPER SWITCH TERMINALS

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29793 061599

 

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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 Normal operation Powder Auto-Fill ready to Fault ListDispense Door not closedProblem Probable Cause TroubleshootingCDS product tastes watery or sugary ProblemRemedy Problem Probable Cause Remedy Improper adjustment of product Procedures. SeeInstall a regulator if necessary to Product overflows CDS hopper Control Board and ProbeComponent Access ServiceHopper Lid Auger Drive ComponentsRetainer Clip Spacer Dust Seal Hopper BaseAuger 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

POWDER AUTO FILL specifications

The Bunn Powder Auto Fill is a cutting-edge coffee brewing system designed to enhance efficiency and precision in commercial environments. This innovative machine simplifies the brewing process by incorporating automated features that ensure consistent quality and optimal performance.

One of the standout features of the Bunn Powder Auto Fill is its ability to automatically dispense powdered beverage mixes. This is made possible through advanced technology that streamlines the process, reducing the need for manual input. With the push of a button, operators can quickly prepare a variety of specialty beverages, including cappuccinos, lattes, and flavored coffee drinks. This not only saves time but also minimizes the likelihood of human error in measurements, ensuring each cup is consistently brewed to perfection.

The Bunn Powder Auto Fill is designed with versatility in mind. It accommodates a wide range of powdered ingredients, allowing businesses to offer an extensive menu without investing in multiple machines. This adaptability makes it an ideal solution for coffee shops, convenience stores, and other establishments where customer preferences may vary.

Moreover, the machine features a robust heating system that provides rapid brewing capabilities. This ensures that beverages are served at the optimal temperature, enhancing the overall customer experience. The integrated hot water faucet allows for quick access to hot water, making it easy to prepare additional drinks or even food items like soups and oatmeal.

Durability is another key characteristic of the Bunn Powder Auto Fill. Built with high-quality materials to withstand the rigors of daily use, this machine is designed to deliver reliable performance over time. Its compact and sleek design allows for easy placement in any setting, taking up minimal counter space while blending seamlessly with existing décor.

Additionally, the Bunn Powder Auto Fill incorporates user-friendly controls and displays. This intuitive interface allows staff to quickly familiarize themselves with the machine's operation, which is crucial in high-demand environments. The system also features programmable settings, enabling users to customize brew strengths and portion sizes according to customer preferences.

In conclusion, the Bunn Powder Auto Fill is a game-changer for businesses looking to elevate their beverage offerings. With its automation, versatility, reliability, and user-centric design, this machine not only boosts efficiency but also enhances the quality of every cup served. Whether in a bustling café or a busy convenience store, the Bunn Powder Auto Fill stands out as a smart investment for any beverage-focused establishment.
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