Bunn VLPF Manual De Propietario

Page 14                                    

Location:

 

The brew timer is located in the hood, to the right 

of the tank.

Test Procedure:

1.  Disconnect the brewer from the power source 

and separate the polarized, three-pin connectors 

between the timer and brewer wiring harness and 

rotate the brew timer dial fully counterclockwise.

2.  With a voltmeter, check the voltage across sockets 

2 & 3 (white and black wires) of the female con-

nector when the On/Left switch is in the upper 

position. Connect the brewer to the power source. 

The indication must be 120 volts ac.

3.   Disconnect the brewer from the power source.

If voltage is present as described, proceed to #4.  If 

voltage is not present as described, refer to the  Wiring 

Diagram and check the brewing harness.

4.  With a voltmeter, check the voltage across sockets 

1 & 2 (blue and white wires) of the female con-

nector when the On/Left switch is in the upper 

position and the Start switch is pressed to the 

lower position and held. Connect the brewer to the 

power source. The indication must be 120 volts 

ac until the Start switch is released.

5.  Disconnect the brewer from the power source.

If voltage is present as described, reconnect the po-

larized, three-pin connectors, and proceed to #6.  If 

voltage is not present as described, refer to the Wiring 

Diagram and check the brewer wiring harness.

5

WHI to Relay Coil

BLK to Relay Coil

P1  BLU/BLK  to Start Switch

P2  WHI to Liquid Level 

     Board                       

P3  BLK to Relay

P1980.80

FIG. 3 BREW TIMER WIRING

OLD STYLE

6.  Disconnect the in-line connectors on the black 

and white wires from the timer to the wiring har-

ness.

7.  With a voltmeter, check the voltage across the 

black and white wires when the On/Left switch is in 

the upper position and the Start switch is pressed 

to the lower position and released. Connect the 

brewer to the power source. The indication must 

be 120 volts ac for approximately 20 seconds and 

then return to its previous indication.

8.   Disconnect the brewer from the power source.

If voltage is present as described, the brew timer is 

operating properly. Reset the timer dial as required, 

to obtain the desired brew volume. If voltage is not 

present as described, replace the brew timer.

Removal and Replacement:

1.  Separate all connectors between the brewer wiring 

harness and the timer.

2.  Remove the two #8-32 nuts holding the timer to 

the inside of the hood.

3.  Install the new timer circuit board as described 

in Late Model Timer section on the following 

pages.

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

5.  Install the Timer Setting decal provided with the 

replacement timer kit, on the bottom of the top 

cover.

6.  Adjust the timer as required. Refer to Late Model 

Timer section on the following pages.

P1979.75

FIG. 2  BREW TIMER

10179 060100