Bunn FMD-4 User Manual

18

J4

J1

J2

J3

J4

J1

J2

J3

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.

BLK to BLK
from Main
Wiring Harness

BLK to RED from
Main Harness

P1447

FIG. 8 BALLAST TERMINALS

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.

P2635

FIG. 7 BALLASTS

35135 012103