Test Outputs (Components); Test Switches - Bunn SINGLE SHDBC Installation & Operating Manual

PROGRAMMING FUNCTIONS - (cont.)
SERVICE TOOLS (cont.)
Testing individual components (outputs):
This will allow the operator to test the operation
of individual components and outputs of the brewer.
The components that can be individually tested are as
follows:
Brew Valve
Bypass Valve
Funnel Lock
Server
Refi ll Valve
Tank Heaters
Procedure to test components (outputs):
1. Place brew funnels into rails on the brewer.
2. Place a Soft Heat server beneath the brew fun-
nel.
3. Press and hold upper right hidden switch until the
display reads SET NEW RECIPES. 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. Press and release YES. The display should read
BREW VALVE.
7. To test BREW VALVE, press ON. If the brew valve
is functional, water should run from the brewer.
8. Press OFF to end fl ow 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 BREW BYPASS, press ON. If the bypass
valve is functional, water should run from the brew
bypass.
11. Press OFF to end fl ow of water.
12. Press NEXT to advance to the next component to
be tested.
13. To test FUNNEL LOCK, 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 SERVER, press ON. If the server and the
sensor are functional, the light on the lower right
corner of the server will illuminate.
17. Press OFF to end testing of server.
18. Press NEXT to advance to the next component to
be tested.
19. To test REFILL VALVE, press ON. If the refi ll valve
is functional, the sound of the valve operating will
be heard.
20. Press OFF to end testing of refi ll 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 confi rm the voltage is zero.
27. Press NEXT to return to TEST OUTPUTS.
28. To exit SERVICE TOOLS, press and release the
pad located on the front switch panel. This
will return to the MAIN SCREEN.
Procedure to test switches:
This function allows the operator to test the opera-
tion of the individual switches on the front panel.
1. Place brew funnel into rails of the brewer.
2. Place a Soft Heat server beneath brew funnel.
3. Press and hold upper right hidden switch until the
display reads SET NEW RECIPES. 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.
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