Bunn FMD-4, FMD-5 manual Service, Ballast all Models

Page 19

SERVICE (cont.)

BALLAST (all Models)

FMD-4 shown

J1

J2

J4

J3

J1

J2

J4

J3

P4095

FIG. 8 BALLASTS

Location

The front door lamp ballasts are located behind the front access panel and may be on either side of the component bracket assembly.

Test Procedure

1.Disconnect the dispenser from the power source.

2.Disconnect the two black leads on the ballast from the main harness.

3.Check for continuity between the two black leads on the ballast.

If continuity is present as described the ballast is op- erating properly.

If continuity is not present as described, replace the ballast.

Removal and Replacement

1.Loosen the three #8-32 screws securing the com- ponent bracket to the dispenser housing base.

2.Pull component bracket out the front of the dis- penser far enough so the leads on each ballast can be disconnected from the main wiring harness and the door interconnect harness.

3.Remove the two #8-32 screws securing each ballast to the rear of the component bracket.

4.Remove and discard the ballast.

5.Install new ballast on the rear of the component bracket and secure each with two #8-32 screws.

6.Refer to schematic wiring diagrams when recon- necting the wires.

7.Place the component bracket into position and tighten the two #8-32 screws securing the com- ponent bracket to the dispenser housing base.

BLK to BLK

 

from Main

 

Wiring Harness

 

BLK to RED from

 

Main Harness

 

FIG. 9 BALLAST TERMINALS

P1447

 

19

42672 122209

 

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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 Remedy ProblemProduct will not dispense Level Control Board and Probe FMD-1Problem Probable Cause Remedy Troubleshooting Procedures. See Product overflows container Dispense SwitchInstall a regulator if necessary to Excess dust Fan Refer to Service42672 20,23 Component AccessAccess Panels SERVICEcontTest Procedures Auger Motor Service Auger Drive Components all ModelsLocation Retainer Clip Panel RED to Control Board ServiceAuger Drive Components Spacer Auger Motor Hopper Base Dust Seal WasherLocknut Auger Motor Bracket Remove auger drive shaft bushing from hopperRinse and dry each item thoroughly Bushing Panel Auger Drive ShaftAuxillary 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 positionControl board to the component bracket Using four #6-32 keps nutsConnectors on the control board Control BoardControl Board Check that the rinse/run switch is in the run posi- tion Control Board Connectors Location Remove temperature probe from the tankRemove bulb from the tank BLK to Main Control ThermostatWHI to Main If voltage is present as described, proceed to #6 Open the dispenser door and remove the bottom door coverIf voltage is present as described, proceed to #7 FMD DBC-3 Digital Touch Control Switch FMD DBC-2,DBC-3FMD DBC-2FD Connectors Digital Touch Control SwitchEMI Filter EMI Filter 230 Volt FMD DBC-3Disconnect the black and white wires from the fan terminals Test ProceduresVacuum 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 ModelsTransformer all Models Disconnected from the main wiring harnessRemove and discard the transformer Q7 & MOV2 Controls Refill Valve Q1 & MOV1 Controls Left Whipper MotorQ2 & MOV3 Controls Center Whipper Motor Q5 & MOV4 Controls Right Whipper MotorBLK 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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