Bunn AF PR-3 User Manual

8

Removal  and Replacement:
1. Disconnect the ten pin plug from the main wiring

harness to the circuit board.

2. Remove the six #4-40 screws and spacers secur-

ing the circuit board to the solenoid mounting
bracket. Remove circuit board and discard.

3. Install new circuit board using #4-40 screws and

spacers to secure the circuit board to the vacuum
switch mounting bracket. The spacers must be
between the solenoid mounting bracket and the
circuit board.

4. Refer to Fig. 3 for circuit board ten pin connector.

J4

J1

J2

J3

FIG. 3 CIRCUIT BOARD CONNECTOR LOCATION

P1528

FIG. 2 CIRCUIT BOARD

P1556

OFFOFF

O

N

OFFOFF

O

N

OFFOFF

O

N

OFFOFF

O

N