Bunn 41343 Manual De Usuario

Page 39

SERVICE TOOLS (cont.)
6.  Press and release YES. The display should read: 

BREW VALVE on SINGLE brewers.

 

LEFT BREW VALVE on DUAL brewers.

7.  To test BREW VALVE, press ON. If the brew valve 

is functional, water should flow from the sprayhead 

(left side on DUAL brewers).

8. Press OFF to end flow of water.

9. Press NEXT to advance to the next component to 

be tested.

NOTE: To bypass testing any component, press NEXT 

to advance to the next one, without testing the previ-

ous component.

10.  To test BYPASS (LEFT BYPASS on DUAL brewers), 

press ON. If the bypass valve is functional, water 

should run from the brew bypass.

11. Press OFF to end flow of water.

12. Press NEXT to advance to the next component to 

be tested.

13. To test FUNNEL LOCK  (LEFT FUNNEL LOCK on 

DUAL brewers), press ON. If the funnel lock is 

functional, the lock will come down to hold the 

funnel in place.

14. Press OFF to retract the funnel lock.

15. Press NEXT to advance to the next component to 

be tested.

16. To test WARMER (LEFT WARMER on DUAL brew-

ers), press ON. If the warmer is functional it will 

begin to heat up.

17. Press OFF to turn off warmer.

18. Press NEXT to advance to the next component to 

be tested. For DUAL brewers follow steps 7 through 

17 to test the right side components.

19. To test REFILL VALVE, press ON. If the refill valve 

is functional, the sound of the valve operating will 

be heard.

20. Press OFF to end testing of refill valve.

21. Press NEXT to advance to the next component to 

be tested.

22.  To test TANK HEATERS, connect a voltmeter across 

each of the tank heaters to check for voltage.

23. Press ON. The correct voltage should be present 

at the heater terminals.

24. Press OFF to end testing of the tank heaters.

NOTE: The tank heater will automatically turn off if 

left on too long.

25.  After testing the tank heater, press NEXT to advance 

to the next test.

26. The HEATER CONTACTOR is used only on certain 

models. Check the machine schematic to see if the 

contactor is present. Connect a voltmeter across a 

tank heater that is operated by the contactor and 

press ON to check that correct voltage is present. 

Press OFF and confirm the voltage is zero.

27. Press NEXT to return to TEST OUTPUTS.

28. To exit SERVICE TOOLS, press and release the 

ON/OFF switch (either on DUAL brewers) located 

on the front switch panel. This will return to the 

MAIN SCREEN.

This function allows the operator to test the opera-

tion of the individual switches on the front panel.

1.  Place brew funnel(s) into rails of the brewer.

2.  Place a GPR beneath the brew funnel(s).

3.  Press and hold upper right hidden switch until the 

display reads UNITS.  Release switch. Continue 

pressing and releasing upper right hidden switch 

until SERVICE TOOLS appears. 

4. Press YES to run tests on various components 

and outputs within the brewer. (Pressing NO will 

exit this function and advance to the next function 

screen.) 

5.  The display should read TEST OUTPUTS.

6. In 

TEST OUTPUTS screen, press NO.  This advances 

to TEST SWITCHES.

7. Pressing NO in this screen will advance to the  

next function. Press YES in the TEST SWITCHES 

screen to test the switches.  The display will read 

NOTHING PRESSED.

8.  From this screen, press any of the switches on the 

front of the brewer.  While the switch is pressed, 

the display shows the name of that switch.  If the 

name does not appear, or if it remains after the 

switch has been released, the switch is defective.  

Each switch can be tested in this manner. 

9.  After all switches have been tested, press and re-

lease the upper right hidden switche located on the 

front switch panel. This will exit TEST SWITCHES 

and return to the MAIN SCREEN.

41343 080108