Service Tools - Bunn TITAN DUAL Service & Repair Manual

TROUBLESHOOTING (cont.)

SERVICE TOOLS

This function allows the testing of individual com-
ponents and the ability to check switches for proper
function.
Procedure to test components and outputs:
The following components can be individually tested:
SINGLE Brewers
Brew Valve
Bypass Valve
Funnel Lock
Refill Valve
Tank Heater Relay
DUAL Brewers
Left Brew Valve
Left Bypass Valve
Left Funnel Lock
Right Brew Valve
Right Bypass Valve
Right Funnel Lock
Refill Valve
Tank Heater Relay
Procedure to test components (outputs):
1. Place brew funnel(s) into rails on the brewer (both
sides on DUAL brewers).
2. Place a server(s) beneath the brew funnel(s).
3. Press and hold the right hidden button until the
display reads SET LANGUAGE. Press the right
hidden button until the display reads SERVICE
TOOLS.
4. Press and release YES. The display should now
read TEST OUTPUTS? Press and release YES to
test individual components and outputs. Pressing
NO will advance to the next programming function,
TEST SWITCHES.
5. The display should now read:
BREW VALVE on SINGLE brewers
<- <- BREW VALVE on DUAL brewers.
To test the brew valve, press ON. If the brew valve
is functional, water should run from the funnel (left
side on DUAL brewers).
6. Press OFF to end the flow of water.
7. Press NEXT to advance to the next component to
RELEASED FOR PRODUCTION
DIR Num: 41747.0000
be tested.
NOTE: To bypass testing any component, press NEXT
to advance to the next component without testing the
previous one.
8. The display should now read:
BYPASS VALVE on SINGLE brewers
<- <- BYPASS VALVE on DUAL brewers
To test the left bypass valve, press ON. If the
bypass valve is functional, water should run from
the funnel (left funnel on DUAL brewers).
9. Press OFF to end the flow of water.
10. Press NEXT to advance to the next component to
be tested.
11. To test FUNNEL LOCK on SINGLE brewers or 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.
12. Press OFF to retract the funnel lock.
13. For DUAL brewers, follow steps 5-12 to test the
right side components.
14. To test the REFILL VALVE, press ON. If the refill
valve is functional, the sound of the valve operating
will be heard.
15. Press OFF to end testing of the refill valve.
16. Press NEXT to advance to the next component to
be tested, TANK HEATR RELAY.
17. To test the tank heater relay, connect a voltmeter
across each of the tank heaters to check for volt-
age.
18. Press ON. The correct voltage should be present
at the heater terminals.
19. Press OFF to end testing of the tank heater relay.
NOTE: The tank heater will automatically turn off if
left on too long.
20. Press NEXT to return to the TEST OUTPUTS
screen. To advance to the next function screen,
TEST SWITCHES, press NO. To exit programming,
press and release the ON/OFF switch (either on
DUAL brewers) to return to the MAIN SCREEN.
Procedure to test switches:
This function allows the operator to test the opera-
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12, December 2018
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