Bunn AF PR-3 User Manual

12

FIG. 12  REFILL SWITCHES

Location:

 

The refill switches are located on the upper 

right front of the autofill box. 

Test Procedures:

1.  Disconnect the dispenser from the power source.

2.  Disconnect  the two white/red, brown/black or red/

black wires from the switch terminals.

3.  Check for voltage across the white/red, brown/

black or red black wires from the test/operate 

switch and the white wire on solenoid #2 or #3. 

Connect the dispenser to the power source. The 

indication must be:

 

a) 120 volts ac for two 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 

P1561

FIG. 13 REFILL SWITCH TERMINALS

P1522

 AFPR-2 & 3

 AFPR-2 & 3

 AFPR-3 ONLY

RED/BLK from Test/

Operate Switch

RED/BLK to Vacuum

Switch #1

BRN/BLK from Test/

Operate Switch

BRN/BLK to Vacuum

Switch #2

WHI/RED from Test/

Operate Switch

WHI/RED to Vacuum

Switch #3

wires to the switch terminals.

If continuity is not present as described, replace the 

switch.

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 in the 

front of autofill box.

3.  Push the new switch into the opening and spread 

the clips to hold switch in the autofill box.

4.  Refer to Fig 13 when reconnecting the wires.

28791.1 011500