Bunn JDF-4SB Manual De Usuario

SERVICE (CONT.)

Push Button Control Board (JDF-4D)

FIG. 27 PUSH BUTTON CONTROL BOARD

P4081.25

Location:

The Push Button Control Board is located inside

the door cover mounted on the bracket.

Test Procedure:

1. Disconnect the dispenser from the power source.

2. With a voltmeter, back probe check the voltage

across pins 1 & 5 of the J6 connector on the wir-

ing harness. Connect the dispenser to the power

source. The indication must be 24 volts ac.

3. Disconnect the dispenser from the power source.

If voltage is not present as described, refer to the Wiring

Diagrams and check the dispenser wiring harness back

to the transformer (See TRANSFORMER).

FIG. 28 CONTROL BOARD CONNECTORS

Removal and Replacement:

1. Remove the five screws securing the door cover to

the door frame.

2. Carefully pull the cover forward and disconnect

all switch harnesses from the connectors on the

control board.

3. Remove the four #6-20 screws securing the control

board to the light panel.

4. Remove the spacers from the control board and

discard the old board.

5. Install the spacers on to the new control board.

6. Install new control board on the light panel using

four #6-20 screws.

7. Position the door cover to the door frame and

reconnect all switch harnesses to the connectors

on the control board.

8. Secure the door cover to the frame with the five

screws previously removed.

J-11

J-10

J-9

J-7

J-6

J-1 N/A

J-6

Main Harness

J-7 N/A

J-9

Rinse Switch

J-10

Dispense Nozzles (Disable)

J-11

Dispense Switches

49179 110613