Bunn FMD-5 User Manual

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P1449

FIG. 17 DISPENSE SWITCH TERMINALS

If voltage is present as described, proceed to #7.

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

diagram and check the dispenser wiring harness.

7.  Check for continuity across the terminals (top right 

to top left; bottom right to bottom left) of the dis-

pense switch with the switch in the “ON” position. 

Continuity must not present when the switch is in 

the “OFF” released position.

If continuity is present as described, reconnect the 

connector to the door interconnect wiring harness, the 

switch is operating properly.

If continuity is not present as described, replace the 

switch.

Removal and Replacement

1.  Open the dispenser door.

2.  Remove the six #8-32 screws securing the bottom 

door cover and remove cover.

3.  Disconnect the wires on the dispense switch from 

the door interconnect wiring harness.

4.   Compress the clips inside the door on the dispense 

switch and gently push the switch through the 

opening

5.  Push the new switch into the opening and spread 

the clips to hold the switch in the door.

6.  Reconnect the wires to the dispense switch from 

the door interconnect wiring harness.

7.   Reinstall the door bottom cover using six #8-32 

screws.

8.  Refer to schematic wiring diagrams when recon-

necting the wires.

FIG.16 DISPENSE SWITCHES

P2636

Location:

  The dispense switches are located on the lower 

outside of the dispenser door.

Test Procedure:

1.  Disconnect the dispenser from the power source.

2.  Open the dispenser door and remove the bottom 

door cover.

3.  Disconnect the wires from the door interconnect wir-

ing harness to the dispense switch to be tested.

4.  Check for voltage across the black and red/white 

wires for the dispense switch to be teseted from 

the door interconnect wiring harness. Connect the 

dispenser to the power supply. The indication must 

be:

 

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

 

b) 120 volts ac for three wire 120/208 volt or 120/240 

volt models.

 

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

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 

diagram and check the dispenser wiring harness.

6.  With a voltmeter, check the voltage across the 

remaining two wires of the dispense switch being 

tested from the door interconnect wiring harness. 

Connect the dispenser to the power source. The 

indication must be +5 volts dc.

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