Bunn FMD-4, FMD-5 manual Troubleshooting

Page 9

TROUBLESHOOTING (cont.)

 

 

 

PROBLEM

PROBABLE CAUSE

REMEDY

Water flows into tank continuously

3. Overflow Protection Switch

Refer to Service - Overflow Protec-

(Cont.)

 

 

tion Switch. See page 44

 

4.

Digital Touch Control Switch

Refer to Service - Digital Touch Con-

 

 

 

trol Switch for testing procedures.

 

 

 

See page 29

Weak product

1. Water Temperature

Place an empty container beneath the

 

 

 

dispense tip. Initiate a dispense cycle

 

 

 

and check the water temperature

 

 

 

immediately below the dispense tip

 

 

 

with a thermometer.(see thermostat

 

 

 

temperature settings decal)

 

2.

Whipper Motor

Refer to Service - Whipper Motor for

 

 

 

testing procedure. See page 34

 

3.

Frother

Refer to Service - Frother Compo-

 

 

 

nents. See page 33

 

4.

Dispense Solenoid Valve

Refer to Service - Dispense Solenoid

 

 

 

for test procedures. See page 47

 

5.

Auger Drive

Refer to Service - Auger Drive Com-

 

 

 

ponents. See page 14

 

6.

Auger Spring

Refer to Service - Auger Drive Com-

 

 

 

ponents. See page 14

 

7.

Auger Motor

Refer to Service - Auger Drive Com-

 

 

 

ponents. See page 14

 

8.

Rinse/Run Switch

Refer to Service - Rinse/Run Switch

 

 

 

for test procedures. See page 45

 

9.

Rinse Timer

Refer to the Installation and Operat-

 

 

 

ing Manual

 

10. Tank Heater Relay

Refer to Service - Relay. See page

 

 

 

51

 

11. Control Board

Refer to Service - Control Board. See

 

 

 

page 20

9

42672 122209

 

Page 8 Page 10
Image 9
Page 8 Page 10
Contents Phone 217 529-6601 FAX 217 FMD SeriesExcluding regular maintenance items BUNN-O-MATIC Commercial Product WarrantyIntroduction Cleaning Required Regular Maintenance Problem Probable Cause Product will not dispense ProblemLevel Control Board and Probe FMD-1 RemedyProblem Probable Cause Remedy Troubleshooting Install a regulator if necessary to Product overflows container Dispense SwitchExcess dust Fan Refer to Service Procedures. See42672 20,23 Component AccessAccess Panels SERVICEcontService Auger Drive Components all Models Test Procedures Auger MotorLocation Auger Drive Components ServiceSpacer Auger Motor Hopper Base Dust Seal Washer Retainer Clip Panel RED to Control BoardRinse and dry each item thoroughly Remove auger drive shaft bushing from hopperBushing Panel Auger Drive Shaft Locknut Auger Motor BracketAuxillary Control Board FMD DBC-3 only Disconnect the dispenser from the power source Service Auxillary Control BoardBallast all Models ServiceControl Board Test Procedure Power SupplyHopper Motor Control Circuitry Check that the RINSE/RUN switch is in the Rinse positionConnectors on the control board Using four #6-32 keps nutsControl Board Control board to the component bracketControl Board Check that the rinse/run switch is in the run posi- tion Control Board Connectors Remove temperature probe from the tank LocationRemove bulb from the tank Control Thermostat BLK to MainWHI to Main Open the dispenser door and remove the bottom door cover If voltage is present as described, proceed to #6If voltage is present as described, proceed to #7 Digital Touch Control Switch FMD DBC-2,DBC-3 FMD DBC-3FMD DBC-2FD Connectors Digital Touch Control SwitchEMI Filter EMI Filter 230 Volt FMD DBC-3Test Procedures Disconnect the black and white wires from the fan terminalsVacuum FAN all Models Frother and Whipper Motor Frother and Whipper Motor all Models except -2FDWill seat inside the whipper chamber Frother and Whipper MotorHopper Drive Board Hopper Drive Board FMD-1 onlyHopper Drive Board Terminals Disconnect the wires from the switch terminals HOT/COLD Switch Optional for FMD DBC-3Terminals Door Assy Upper Panel Lamp Holders Lower Panel Lamp Holder all ModelsLamp Starter and Socket Level Control Board and Level Probe FMD-1 only Reconnect the violet wire to terminalLevel Board Terminals Limit Thermostat Limit Thermostat all ModelsOverflow Protection Switch RINSE/RUN Switch Rinse /RUN Switch all ModelsCold Water Solenoid Terminals Solenoid Valve Cold Water Optional for FMD-2,-3,-4,-5Dispense Solenoid Valves P1637.40 Location Solenoid Valves Dispense all ModelsSolenoid Valve HOT Water Dispense Solenoid Valve FMD-2FD,DBC-2FD,-3,DBC-3Inlet Solenoid Valve Solenoid Valve Inlet all ModelsTank Heater all Models WHI or RED to Main BLK to Limit Wiring HarnessBRN/BLK from WHI from Main Harness Tank Heater Relay FMD-4,-5,120V Dispensers onlyTank Heater Switch Tank Heater Switch all ModelsDisconnected from the main wiring harness Transformer all ModelsRemove and discard the transformer Q2 & MOV3 Controls Center Whipper Motor Q1 & MOV1 Controls Left Whipper MotorQ5 & MOV4 Controls Right Whipper Motor Q7 & MOV2 Controls Refill ValveBLK Schematic Wiring Diagram FMD-1WHI-16 Schematic Wiring Diagram FMD-1ASchematic Wiring Diagram FMD-2 Schematic Wiring Diagram FMD-2A Schematic Wiring Diagram FMD DBC-2 Freeze Dried W/HOT Water Schematic Wiring Diagram FMD-2FD 42672 42672 42672 42672 Schematic Wiring Diagram FMD DBC-3 With HOT Water Dispense Schematic Wiring Diagram Fmda DBC-3 With HOT Water Dispense 42672 42672 42672 42672 Schematic Wiring Diagram FMD-5A
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FMD-4, FMD-5 specifications

The Bunn FMD-5 is a state-of-the-art coffee dispenser designed specifically for high-volume coffee brewing situations. This machine is ideal for restaurants, convenience stores, and other establishments that require an efficient and reliable coffee dispensing solution.

One of the primary features of the Bunn FMD-5 is its ability to brew and serve fresh, hot coffee with exceptional speed. The unit is capable of dispensing up to five gallons of coffee per hour, making it an ideal choice for busy environments where customer demand is high. The system utilizes a digital brewer control that allows for precise brewing temperatures and times, ensuring consistency in flavor and quality.

The FMD-5 also incorporates advanced technologies to streamline the brewing process. It features a programmable control panel that allows users to adjust settings based on their specific needs. This includes the ability to set brew cycles, control brew levels, and even program different brew strengths. The easy-to-read digital display shows real-time information, making it simple for operators to monitor the brewing process.

Another notable characteristic of the Bunn FMD-5 is its compact and space-saving design. Despite its robust brewing capacity, the unit is designed to fit easily in various retail and foodservice environments. The machine is also built with durable materials, ensuring longevity and reliability under heavy usage.

For maintenance, the FMD-5 is designed with user convenience in mind. It features removable components and accessible areas for easy cleaning and routine maintenance. Users can also benefit from preventative maintenance features that monitor the machine’s performance, alerting operators to any potential issues before they escalate.

In terms of versatility, the Bunn FMD-5 can accommodate different brewing systems and coffee types, allowing users to customize their offerings based on customer preferences. It supports pre-ground coffee and can also be adapted for different brewing styles, enhancing its usability in various coffee service environments.

Overall, the Bunn FMD-5 is an impressive combination of speed, efficiency, and flexibility, making it an excellent choice for any operation that demands high-quality coffee with minimal wait time. Whether you are serving a morning rush of customers or maintaining a steady stream of coffee through the day, the Bunn FMD-5 stands out as a reliable and efficient coffee dispensing solution.
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