Bunn FMD-3 Lamp Starter and Socket, As assembly, Level Control Board and Level Probe

Page 24

SERVICE (cont.)

LAMP STARTER and SOCKET

Location:

The lamp starter (6) is located inside the door assy (1) on the top of the door lower panel (5).

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Disconnect the starter leads from the door wiring harness.

3.Remove lamp starter from starter socket.

4.Check for continuity on each lead of the starter socket.

If continuity is present as described the starter socket is operating properly.

If continuity is not present as described replace the the starter socket.

6.Remove starter (6) from starter socket.

7.Check for continuity across the pins on the bottom of the starter (6).

If continuity is present as described , replace the starter.

If continuity is not present as described, starter is operating properly.

Note: If continuity tests are both as described and lamp does not light, replace the starter socket.

Removal and Replacement (Refer to Fig.17):

1.Open dispenser door assy (1)

2.Remove the five #6-32 screws securing the door lower panel (5) to the door assy (1).

3.Disconnect the leads on the starter socket from the door wiring harness.

4.Remove lower door panel (5) and starter w/socket

(6) as assembly.

5.Compress the spring tabs on the socket and re- move socket from the door bottom cover (5).

6.Rotate starter 90° and remove from the starter socket.

7.Insert new starter (6) into socket and turn 90° until the pins snap in place.

8.Install new socket by compressing spring tabs on the socket and pushing the socket up through the hole in the lower door panel (5) and releasing spring tabs.

9.Connect the sockets leads to the door wiring harness.

10.Install door lower panel (5) with starter and starter socket on door assy (1) using five #6-32 screws.

LEVEL CONTROL BOARD AND LEVEL PROBE

P1445

FIG. 18 LEVEL CONTROL BOARD AND PROBE

Location:

The level control board is located behind the lower access panel mounted on the right side of the component bracket.

The Level probe is located on the left center of the tank lid just in front of the overflow tube.

Test Procedure:

1.Disconnect the dispenser from the power source.

2.Remove the violet wire from terminal 1 & pink wire from terminal 4 of the circuit board.

3.Check the voltage across terminals 2 & 3 with a voltmeter. Connect the dispenser to the power source. The indication must be 120 volts ac for two wire 120 volt models, three wire 120/208 volt models, three wire 120/240 volt models and 240 volts ac for two wire 240 volt models.

4.Disconnect the dispenser from the power source.

24

28364 011598

 

Image 24
Contents Post Office BOX SPRINGFIELD, Illinois Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty FMD-2 FMD-300656.0000 00831.0000 28368.000026536.0002 FMD-2Initial SET-UP Initial Fill & Heat Plumbing HOOK-UPDraining the HOT Water Tank Problem Probable Cause RemedyTroubleshooting Replacement Control thermostatStat for testing procedures. See Product overflows container Dispense switch Dripping from dispense tip Lime build-upLeaks ColdProblem Probable Cause RemedyRefer to Service Lamp, see page 23 for lamp replacement Dispenser is making unusualNoises Water Supply Tank Heater Excess dust Fan Display not lit Lamp Lamp Holder Starter Lamp BallastComponent Access ContentsAuger Drive Components Hopper Lid Auger Wire Agitator Disc Assy If voltage is present as described, proceed to #5Off of the auger drive shaft Auger Drive Shaft Optional Bushing Ejector ElbowAuger Drive Components Remove dust seal 18 from auger motorRefer to when reconnecting the wires BallastHarness BLK to BLU From Door Interconnect Remove temperature probe from the tank Control ThermostatDispense Switch Control ThermostatLocation Dispense Switch FANLocation FAN Frother and Whipper MotorSteam Collector Ring Mixing Chamber #8-32 Acorn Nut Washer Ring Nut FrotherFrother and Whipper Motor Hopper Delay Board Whipper Motor Terminals P1451.40HOT/COLD Switch Optional Disconnect the wires from the switch termi- nalsLamp Replacement Refer to Fig Lamp HolderDoor Assy Upper Panel Lamp Holders Lower Panel Remove the outside window and display graphicAs 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 SwitchSolenoid Valve Cold Water Optional Cold Water Solenoid ValveCold Water Solenoid Terminals Solenoid Valves DispenseSolenoid Valves Dispense Solenoid Valve InletSolenoid Valve Inlet Tank HeaterMain Wiring Thermostat Harness Tank Heater SwitchTank Heater Tank Heater Switch Tank Heater Switch TerminalsSchematic Wiring Diagram FMD-1, FMD-2, & FMD-3 Schematic Wiring Diagram FMDA-1, FMDA-2, & FMDA-3