SERVICE (cont.)

DOOR SWITCH

P1934

FIG. 28 DOOR SWITCH

Location:

The door switch is located on the right side panel under the housing top cover.

Test Procedures:

1.Disconnect the dispenser from the power source.

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

3.Check continuity between pins 8 & 9 on the wiring harness using an ohmmeter. Continuity must be present when the door is closed. Continuity must not be present when the door is open.

4.Reconnect the twelve pin connector to the control board.

5.Gain access to the door switch using steps listed in Removal and Replacement.

6.Disconnect the wires from the door switch.

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

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

If continuity is not present s described, replace the door switch.

Removal and Replacement:

1.Disconnect the dispenser from the power source.

2.Remove the hopper assembly from the dispenser.

3.Remove the dispenser from the CDS machine and place it on a flat work surface.

4.Disconnect the door lamp cord from the lamp connector.

5.Remove the two #8-32 screws securing the door hinge to the dispenser housing.

6.Carefully pull the door forward until the door sup- port arms come completely out of the dispenser housing and set aside.

7.Remove the six #8-32 truss head screws securing the rear cover to the dispenser housing.

8.Remove the six #8-32 round head screws securing the front of the housing to the side panels.

9.Remove the six #8-32 truss head screws securing the back of the housing to the side panels.

10.Carefully lift and spread the housing to remove it from the rest of the dispenser.

11.Remove the door switch actuator from the nylon standoff.

12.Noting the orientation of the door switch, remove the two #6-32 screws and the nylon standoff secur- ing the switch mounting bracket to the dispenser housing. Remove the switch.

13.Attach the new door switch taking care to orient the switch correctly in the mounting bracket and se- cure in place with two #6-32 screws and nylon standoff.

14.Reconnect the wires to the door switch. Refer to Fig. 29.

15.Install the door switch actuator orienting the notched side against the right side housing panel. Refer to Fig. 28.

16.Reassemble the dispenser top housing, rear panel, and door assembly to the dispenser.

 

ORA to Control

 

Board (J1-9)

 

GRN to Control

 

Board (J1-8)

 

P1908

 

FIG. 29 DOOR SWITCH TERMINALS

30

29793.1 021202

 

Page 30
Image 30
Bunn dispenser service manual Door Switch

dispenser specifications

The Bunn dispenser is a highly regarded name in the beverage service industry, known for its reliable coffee brewers, steeping equipment, and beverage dispensing solutions. These dispensers are designed with efficiency and quality in mind, making them a favorite in restaurants, cafes, and other foodservice establishments.

One of the main features of the Bunn dispenser is its rapid brewing capability. Utilizing a unique brewing system, Bunn dispensers can quickly brew large quantities of coffee, which is essential for high-demand environments. The machines are equipped with advanced heating technology that ensures water is brewed at the optimal temperature for extracting the best flavors from coffee grounds. This feature not only enhances the quality of the beverage but also significantly reduces waiting times for customers.

Another key characteristic of Bunn dispensers is their durability. Built with high-quality materials, these machines are designed to withstand the rigors of a busy kitchen environment. The robust construction ensures a long lifespan, minimizing the need for frequent repairs or replacements. Additionally, many models feature stainless steel components that are resistant to corrosion and easy to clean, maintaining hygiene standards while also looking professional.

Bunn dispensers are also known for their versatility. With a range of models available, including single and multi-hopper options, they can dispense various beverages, including coffee, tea, and iced drinks. This flexibility allows businesses to cater to different customer preferences without requiring multiple machines. Moreover, Bunn dispensers often come with programmable features, enabling users to customize brew strengths and volumes for optimal beverage consistency.

In terms of technology, Bunn has incorporated advanced digital controls and user interfaces in many of its models. These digital displays simplify operation, allowing staff to monitor brewing processes and receive alerts for maintenance requirements efficiently. Such technological integration enhances user experience and operational efficiency.

Energy efficiency is another consideration in the design of Bunn dispensers. Many models are equipped with energy-saving features, which help reduce power consumption during both operation and standby modes. This focus on sustainability not only lowers utility costs for businesses but also aligns with the growing consumer demand for environmentally responsible practices.

In conclusion, Bunn dispensers combine speed, durability, versatility, advanced technology, and energy efficiency, making them an excellent choice for any foodservice operation. Their ability to deliver high-quality beverages quickly and consistently makes them a pivotal asset for businesses aiming to provide an exceptional customer experience.