Bunn S/N DUAL068000 manual SERVICE TOOLS cont, SCREEN Procedures to test servers, Ers?, Frequency?

Models: S/N DUAL068000

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PROGRAMMING THE BREWER (cont.)

SERVICE TOOLS (cont.)

front of the brewer except the upper right hidden switch. 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 right hidden switch (®). This will return to TEST SWITCHES?. Press and release switch again to advance to TEST SERVERS?. Another alternative is to press and release either ON/OFF switch located on the front switch panel. This will exit TEST SWITCHES and return to the MAIN

SCREEN.

Procedures to test servers:

This function allows the operator to test the opera- tion of the Soft Heat servers. It will also show if the server is correctly placed on the brewer stand.

1.Place brew funnels into rails on both sides of brewer.

2.Place a Soft Heat server beneath each brew fun- nel.

3.Press and hold the upper right hidden switch until the display reads UNITS. Release the switch. Con- tinue to press and release switch until SERVICE TOOLS? appears.

4.Pressing NO will exit this function and advance to the next function screen. Press YES to run tests on various components and outputs within the brewer.

5.The display should read TEST OUTPUTS?

6.In TEST OUTPUTS screen, press NO. This advances to TEST SWITCHES?. Press and release NO once more. The display should now read TEST SERV-

ERS?

7.Press YES in the TEST SERVERS screen to show if a server is in place. The display should read IN PLACE with arrows pointing to the left and right

8.Lift and pull both Soft Heat servers forward about 2 inches so that the two contacts on each server do not touch the two contacts on the brewer.

9.The display should then read SERVER REMOVED with arrows pointing to the left and right.

10.After the servers have been tested, press and release either ON/OFF switch located on the front switch panel. This will exit TEST SERVERS and return to the MAIN SCREEN.

Procedures to test coil frequency:

1.Place brew funnels into rails on both sides of brewer.

2.Place a Soft Heat server beneath each brew fun- nel.

3.Press and hold the upper right hidden switch un- til the display reads UNITS. Release the switch. Continue pressing and releasing the upper right hidden switch until SERVICE TOOLS appears.

4.Pressing NO will exit this function and advance to the next function screen. Press YES to run tests on various components and outputs within the brewer.

5.The display should read TEST OUTPUTS?.

6.In TEST OUTPUTS screen, press NO. Continue to press and release NO until the display reads TEST

FREQUENCY?.

7.Press and release YES. The display will show the frequency of the sensor coil circuits. This is for diagnostic service use when troubleshooting this circuit.

8.After the coils have been tested, press and release either ON/OFF switch located on the front switch panel. This will exit the TEST FREQUENCY function and return to the MAIN SCREEN.

NOTE: If the operator wishes to test more than one function in the SERVICE TOOLS section (outputs, switches, servers, or coil frequency), it is not necessary to exit the program. Use the flow chart for SERVICE TOOLS to navigate to a particular function.

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29877-3 062005

 

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Bunn S/N DUAL068000 manual SERVICE TOOLS cont, SCREEN Procedures to test servers, Ers?, Procedures to test coil frequency