Bunn Ice Tea Maker AFPO-3 User Manual

18

FIG. 20 TEST/OPERATE SWITCH

Location

 

The test/operate switch is located inside the autofill 

box on the right side.

Test Procedures:

1.  Disconnect the dispenser from the power source.

2.  Remove the black wire from the top center switch 

terminal.

3.  Connect the dispenser to the power source. With a 

voltmeter, check the voltage across the black wire 

removed from the test/operate switch and the white 

wire from one of the solenoids. 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.

 

c) 230 volts ac for two wire 230 volt models.

P1521

5.  Disconnect the dispenser from the power source.

If voltage is present as described, proceed to #6.

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

Diagrams and check the wiring harness.

6.  Disconnect the  wires from the left and center 

terminals.

7.  Check for continuity across the left and center 

terminals in rows one, two, three and four with the 

switch in the “operate” position. Continuity should 

not be present across the left and center terminals 

with the switch in the “center” or “Test” position.

If continuity is present as described, replace the wires. 

The switch is operating properly.

If continuity is not present as described, replace the 

switch.

Removal and Replacement:

1.  Disconnect the dispenser from the power source.

2.  Remove the wires from the switch terminals.

3.  Compress the clips inside on the back of the switch 

panel and gently push the switch through the open-

ing.

4.  Push the new switch into the opening and spread 

the clips to hold the switch in the switch panel.

5.  Refer to FIG. 21 when reconnecting the wires.

BLK from Main

ON/OFF Switch

BLK to Circuit

Board J4-3

RED/BLK from Pump Switch #1

RED/BLK to Refill Switch #1

BRN/BLK from Pump Switch #2

BRN/BLK to Refill Switch #2

WHI/RED from Pump Switch #3

WHI/RED to Refill Switch #3

BLU from Solenoid Switch #1

VIO from Solenoid Switch #2

WHI/VIO from Solenoid Switch #3

FIG. 21 TEST/OPERATE SWITCH TERMINALS

P1525

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