Bunn FMD-2, FMD-1 service manual Problem Probable Cause Remedy

Page 11

TROUBLESHOOTING (cont.)

 

 

 

PROBLEM

PROBABLE CAUSE

REMEDY

Product overflows container

1. Dispense Switch

Refer to Service - Dispense Switch

 

 

 

for testing procedures. See page 21

 

2.

Dispense Solenoid Valve

Remove the solenoid valve and clear

 

 

 

any obstructions. Rebuild or replace

 

 

 

the valve if necessary. See page 34

Weak product

1. Water Temperature

Place an empty container beneath

 

 

 

the dispense tip. Initiate a dispense

 

 

 

cycle and check the water tempera-

 

 

 

ture immediately below the dispense

 

 

 

tip with a thermometer.

 

 

 

Reading for mechanical thermostat

 

 

 

models should be 180° F to 200° F

 

 

 

(see thermostat temperature settings

 

 

 

decal in USER NOTICES on page 3.)

 

2.

Whipper Motor

Refer to Service - Whipper Motor for

 

 

 

testing procedure. See page 24

 

3.

Frother

Refer to Service - Frother Compo-

 

 

 

nents. See page 24

 

4.

Dispense Solenoid Valve

Refer to Service - Dispense Solenoid

 

 

 

Valve for test procedures. See page

 

 

 

34

 

5.

Auger Drive - FMD-1

Refer to Service - Auger Drive Com-

 

 

 

ponents. See page 13

 

 

Auger Drive - FMD-2

See page 15

 

6.

Auger Spring - FMD-1

Refer to Service - Auger Drive Com-

 

 

 

ponents. See page 13

 

 

Auger Spring - FMD-2

See page 15

 

7.

Auger Motor - FMD-1

Refer to Service - Auger Drive Com-

 

 

 

ponents. See page 13

 

 

Auger Motor - FMD-2

See page 15

 

8.

Rinse/Run Switch - FMD-1

Refer to Service - Rinse/Run Switch

 

 

 

for test procedures. See page 31

 

 

Rinse/Run Switch - FMD-2

See page 32

 

9.

Rinse Timer - FMD-2

Refer to Operation - Rinse Timer.

 

 

 

See Page 5

11

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Contents BUNNFMD-1 FMD-2 FMD-1 FMD-2 WarrantyIntroduction User Notices28368.0001 00656.0000FMD-1 only Plumbing Requirements Initial SET-UPElectrical Requirements Electrical HOOK-UPRunning a Rinse Sequence Rinse Timer FMD-2 onlyInitial Fill & Heat Liquid Level ControlCold Beverage SET-UP Optional FMD-2 only CleaningAdjustments Hopper Motor Speed Adjustment FMD-1Draining the HOT Water Tank Probable Cause TroubleshootingProblem Product will not dispenseProbable Cause Remedy See Problem Probable CauseStat for testing procedures. See FMD-1Problem Probable Cause Remedy Dispenser is making unusual Refer to Service Lamp, see page 28 for lamp replacementAuger Drive Components FMD-1 ServiceComponent Access ContentsRetainer Clip Ing panel Retainer Clip Hopper AssemblyHopper Lid Spacer Auger Motor Hopper Base Dust Seal WasherAuger Drive Components FMD-2 Auger Drive Components FMD-1To the rear of the auger motor mounting panel Hopper Hopper Assy Remove auger motor and discard Disconnect the wires from the auger motor 16 to be removedRemove dust seal 17 from auger motor Location Ballast FMD-1 & FMD-2Thermostat Terminals Control Board FMD-2 onlyService Dispense Switch Dispense Switchs FMD-1 & FMD-2 FAN FMD-1 & FMD-2 Dispense Switch Terminals P1449FMD-2 Whipper Motor Terminals P1221 Frother and Whipper Motor FMD-1 shown & FMD-2Hopper Drive Board Hopper Drive Board FMD-1 onlyHopper Drive Board Terminals Hopper Drive Board FMD-1 onlyDoor Assy Upper Panel Lamp Holders Lower Panel Lamp Replacement Refer to FigLevel Control Board and Level Probe FMD-1 only Lamp Replacement Refer toAs assembly Lamp Starter and Socket Refer to LocationLevel Control Board and Level Probe FMD-1 only Reconnect the violet wire to terminalLocation RINSE/RUN Switch FMD-1BLK from Main Harness WHI/BRN to YEL to Control Board J2-3 RINSE/RUN Switch FMD-2WHI/RED to Cold Water Solenoid Valve Solenoid Valve Cold Water OPTIONALFMD-2 onlyFMD-1 Solenoid Valve Dispense FMD-1 & FMD-2 Tank Heater Solenoid Valve Inlet FMD-1 & FMD-2Main Harness Thermostat Tank Heater FMD-1 shown & FMD-2WHI/GRN T7 WHI/BLK T12 Transformer FMD-2 onlySingle Phase Schematic Wiring Diagram FMD-1Schematic Wiring Diagram FMD-2
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FMD-2, FMD-1 specifications

The Bunn FMD-2 is an advanced coffee dispensing machine designed for high-traffic environments, such as cafés, restaurants, and convenience stores. This commercial coffee equipment stands out for its reliability, efficiency, and user-friendly features, making it a preferred choice among coffee retailers.

A standout feature of the FMD-2 is its dual coffee bean hopper system, which allows for the storage and dispensing of two different coffee blends simultaneously. This versatility provides establishments the opportunity to cater to varying customer preferences, whether they prefer a robust espresso or a smooth medium roast. The hoppers can hold a significant amount of coffee beans, ensuring that the machine can keep up with high demand without the need for frequent refilling.

The FMD-2 incorporates state-of-the-art brewing technology, including the ability to brew coffee quickly while preserving the essential flavor characteristics of the beans. Its precision brewing process ensures consistency in taste and quality, which is crucial for customer satisfaction in a commercial setting. The machine is equipped with adjustable brew times and temperatures, allowing operators to fine-tune the brewing process according to specific coffee styles or customer preferences.

Another notable characteristic of the Bunn FMD-2 is its digital interface, which features an intuitive touchscreen display. This modern interface simplifies the operation of the machine, enabling baristas and staff to quickly train and adapt to its functionalities. The display provides real-time feedback on brewing status, maintenance reminders, and settings adjustments, making it easier to ensure optimal performance and reduce downtime.

In addition to its user-friendly design, the Bunn FMD-2 is constructed for durability. Its stainless steel exterior not only enhances its aesthetic appeal but also ensures that it can withstand the rigors of daily use in a bustling environment. The machine is designed with easy maintenance in mind, allowing for straightforward cleaning and servicing to keep it operating at peak performance.

Overall, the Bunn FMD-2 is a versatile, reliable, and innovative coffee dispensing solution that meets the demands of today’s coffee enthusiasts. With its dual hopper system, precision brewing technology, and user-friendly interface, it’s an ideal choice for any establishment looking to elevate their coffee offerings and enhance customer experience.
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