Bunn FMD DBC-3 Operating & Service Manual page 42

SERVICE (cont.)
TRANSFORMER (cont.)
5. Check the voltage between J1-1 and J1-2 on the
eight pin connector at the control board. Connect
the dispenser to the power source. The indication
must be 24 volts ac.
If voltage is present as described the transformer is
operating properly.
If voltage is not present as described, replace the
transformer.
Removal and Replacement:
1. Loosen the two #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 transformer connector
can be disconnected from the main wiring har-
ness.
3 Disconnect the transformer four pin connector
from the four pin plug on the main wiring harness.
4. Remove the two #6-32 keps nuts securing the
transformer to the rear of the component bracket.
5. Remove and discard the transformer.
6. Install new transformer on the rear of the compo-
nent bracket and secure with two #6-32 keps nuts.
7. Connect the four pin connector on the transformer
to four pin plug on the main wiring harness.
8. Place the component bracket into position and
tighten the two #8-32 screws.
WHI/GRN - T8
WHI/BLK - T12
FIG. 42 TRANSFORMER TERMINALS
42
WHI - 120V T2, 240/230V T6
BLK - TI
P1647
29215 052104