Bunn service manual BALLASTS - FMD-4& FMD-5, SERVICE cont

SERVICE (cont.)

BALLASTS - FMD-4 & FMD-5

J1

J2

J4

J3

J1

J2

J4

J3

P2635

FIG. 7 BALLASTS

Location

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

Test Procedure

1.Disconnect the dispenser from the power source.

2.Disconnect the two black lead 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 operating 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 Fig. 8 and reconnect the wires.

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

BLK to BLK from Main Wiring Harness

BLK to RED from

Main Harness

FIG. 8 BALLAST TERMINALS P1447

18 35135 012103