Bunn AF PR-3 User Manual

10

Removal and Replacement::

1.  Remove the wires from the switch terminals.

2.  Compress the clips inside the autofill box and 

gently push the switch through the opening

3.  Push the new switch into the opening and spread 

the clips to hold switch in the autofill box.

4.  Refer to Fig 7 when reconnecting the wires.

P1522

FIG. 7 MAIN ON/OFF SWITCH TERMINALS

BLK from Fuse Holder

BLK to Pump Switch #2

FIG. 6 MAIN ON/OFF SWITCH

P1561

Location:
 

The main ON/OFF switch is located on the 

lower right front of the autofill box just above the 

power cord.

Test Procedure:

1.  Disconnect the dispenser from the power source.

2.  Disconnect  the black wire from the fuse holder 

to the main  ON/OFF switch. Disconnect the white 

wire from pump #1.

3.  Check for voltage across the black wires removed 

from the switch and the white wire removed from 

pump #1. Connect the dispenser to the power 

source. The indication must be:

 

a) 120 volts ac for 2 wire 120 volt models.

 

b) 200 to 240 volts ac for two wire 200 or 240 volt 

models.

4.  Disconnect the dispenser from the power source.

If voltage is present as described, proceed to #5.

If voltage is not present as described, refer to the wir-

ing diagrams and check the dispenser wiring harness.

5.  Check for continuity across the switch terminals 

with the switch in the “ON” position. Continuity 

must not be present when the switch is in the 

“OFF” position.

If continuity is present as described, reconnect the 

wires to the switch terminals.

If continuity is not present as described, replace the 

switch.

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