TROUBLESHOOTING (cont.)

PROBLEM

PROBABLE CAUSE

REMEDY

Product will not dispense

1. Empty product container

Replace or refill

2.No power or incorrect voltage to the dispenser

3.Signal cable unplugged

4.Hopper is full

5.Fuse and fuse holder

(A1) Check the outlet for 120 volts on two wire 120 volt dispenser.

(A2) Check the outlet for 200 volts or 240 volts ac for two wire 200 volt or 240 volt dispensers.

(B)Check circuit breakers or fuses. Signal cable must be plugged in.

Product must not be touching probes to fill.

Refer to Service - Fuse and Fuse Holder for test procedures. See page 8

Motor thermal cutout (motor stops running)

6.

Main ON/OFF switch

Refer to Service - Main ON/OFF

 

 

Switch for testing procedure. See

 

 

page 9

7. Probe box LOW/OFF/HIGH switch-

Refer to Service - Probe System.

es

 

See page 10

8.

Circuit board

Refer to Service - Circuit Board for

 

 

testing procedures. See page 7

9.

Vacuum switches

Refer to Service - Vacuum Switches

 

 

for testing procedures. See page 14

10. Vacuum/Supply pump

Refer to Service - Vacuum/ Supply

 

 

Pump for testing procedures. See

 

 

page 12

1.

Motor over heats

The thermal switch will reset, but

 

 

requires up to 30 minutes of cooling

 

 

time. See NOTE below.

NOTE: This refill unit should not be used to initially fill the hopper. Running the motor for extended periods will trip the thermal switch. The thermal switch will reset, but requires up to 30 minutes of cooling time.

6

28791.1 011500

 

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Bunn AF PR-3 service manual Troubleshooting, Problem Probable Cause Remedy

AF PR-3 specifications

The Bunn AF PR-3 is a high-performance coffee brewer designed for commercial use, particularly in cafés, restaurants, and other settings where quality coffee must be brewed quickly and efficiently. Known for its exceptional reliability and innovative features, the Bunn AF PR-3 has become a popular choice among coffee professionals.

One of the standout features of the AF PR-3 is its ability to brew up to 3 gallons of coffee per hour. This capacity makes it ideal for busy environments where a quick turnaround is essential. The brewer uses a patented technology that ensures optimal brewing temperature and extraction time, resulting in a rich, full-bodied flavor profile in each cup.

Another significant aspect of the Bunn AF PR-3 is its automatic features. With a programmable digital display, users can easily select brew settings and adjust individual preferences. This user-friendly interface simplifies operation and allows baristas to focus on crafting the perfect coffee every time. The unit also comes with a built-in hot water faucet that enables the brewing of other beverages, such as tea or instant soups, further enhancing its versatility.

Additionally, the Bunn AF PR-3 incorporates advanced brewing technology, including its unique "infusion" brews system. This system allows water to saturate coffee grounds evenly, promoting even extraction. As a result, the coffee brewed with the AF PR-3 exhibits a well-balanced taste with vibrant aroma, catering to the sophisticated palate of coffee aficionados.

Durability is another characteristic of the Bunn AF PR-3. The brewer is built with high-quality stainless steel, making it resistant to wear and tear, and ensuring that it can withstand the demands of a bustling café environment. The machine's components are designed for easy maintenance, allowing operators to clean and service the brewer with minimal downtime.

Moreover, the Bunn AF PR-3 is energy efficient, designed to reduce energy consumption without compromising performance. This feature not only helps in keeping operational costs down but also makes it an environmentally friendly choice for coffee businesses.

In conclusion, the Bunn AF PR-3 is a leading coffee brewer that combines speed, quality, and user-friendly technology, making it an essential piece of equipment for any commercial coffee establishment. Its ability to brew large quantities of rich, flavorful coffee efficiently, along with its durability and ease of operation, solidifies its position as a top contender in the coffee brewing market.