Bunn FMD-3 service manual Ballast, Refer to when reconnecting the wires

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SERVICE (cont.)

BALLAST
FIG. 4 BALLAST	P1445
FIG. 4 BALLAST
Location

The front door lamp ballast is located behind the front access panel on the left side of the compo- nent bracket.

Test Procedure

1.Disconnect the dispenser from the power source.

2.Disconnect the two terminal plug of the door interconnect harness from the main wiring har- ness.

3.Check the voltage across the white wire and the blue wire terminal of the ballast with a voltmeter. Connect the dispenser to power source. The indi- cation must be:

a)120 volts ac for two wire 120 volt models.

b)120 volts ac for three wire 120/208 volt models or 120/240 volts models.

c)240 volts ac for two wire 240 volt models.

If voltage is present as described the ballast is oper- ating properly.

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

Removal and Replacement

1.Disconnect the wires from the ballast.

2.Remove the one #8-32 screw securing the bal- last to the component bracket.

3.Remove and discard ballast.

4.Install new ballast over the weld pin on the com- ponent bracket and secure with one #8-32 screw.

5.Refer to Fig. 5 when reconnecting the wires.

BLK to Main Wiring
Harness
BLK to BLU
from Door
Interconnect
Harness
FIG. 5 BALLAST TERMINALS	P1447
FIG. 5 BALLAST TERMINALS

15	28364 011598

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Contents Phone 217 529-6601 FAX 217 Post Office BOX SPRINGFIELD, IllinoisFMD-2 FMD-3 BUNN-O-MATIC Commercial Product WarrantyFMD-2 00656.0000 00831.000028368.0000 26536.0002Initial SET-UP Plumbing HOOK-UP Initial Fill & HeatDraining the HOT Water Tank Remedy Problem Probable CauseTroubleshooting Replacement Control thermostatStat for testing procedures. See Cold Product overflows container Dispense switchDripping from dispense tip Lime build-up LeaksProbable Cause Remedy ProblemDisplay not lit Lamp Lamp Holder Starter Lamp Ballast Refer to Service Lamp, see page 23 for lamp replacementDispenser is making unusual Noises Water Supply Tank Heater Excess dust FanComponent Access ContentsAuger Drive Components Auger Drive Shaft Optional Bushing Ejector Elbow Hopper Lid Auger Wire Agitator Disc AssyIf voltage is present as described, proceed to #5 Off of the auger drive shaftRemove dust seal 18 from auger motor Auger Drive ComponentsRefer to when reconnecting the wires BallastHarness BLK to BLU From Door Interconnect Control Thermostat Remove temperature probe from the tankDispense Switch Control ThermostatLocation Dispense Switch FANLocation Washer Ring Nut Frother FANFrother and Whipper Motor Steam Collector Ring Mixing Chamber #8-32 Acorn NutFrother and Whipper Motor Whipper Motor Terminals P1451.40 Hopper Delay BoardDisconnect the wires from the switch termi- nals HOT/COLD Switch OptionalRemove the outside window and display graphic Lamp Replacement Refer to FigLamp Holder Door Assy Upper Panel Lamp Holders Lower PanelAs assembly Lamp Starter and SocketLevel Control Board and Level Probe Level Control Board and Level Probe Limit Thermostat Limit ThermostatOverflow Protection Switch From Main HarnessBoard RINSE/RUN Switch Rinse /RUN SwitchCold Water Solenoid Valve Solenoid Valve Cold Water OptionalSolenoid Valves Dispense Cold Water Solenoid TerminalsSolenoid Valve Inlet Solenoid Valves DispenseTank Heater Solenoid Valve InletMain Wiring Thermostat Harness Tank Heater SwitchTank Heater Tank Heater Switch Terminals Tank Heater SwitchSchematic Wiring Diagram FMD-1, FMD-2, & FMD-3 Schematic Wiring Diagram FMDA-1, FMDA-2, & FMDA-3