Bunn TNTF-3 service manual SERVICE cont ICED/OFF/HOT SWITCH, WHI/VIO to Iced Tea

Models: TNTF-3

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SERVICE (cont.)

SERVICE (cont.)

ICED/OFF/HOT SWITCH

FIG. 20 ICED/OFF/HOT SWITCH

P1370.40

 

Location:

The ICED/OFF/HOT switch is located in the front of the hood, above and to the left of the brew funnel.

Test Procedure:

1.Disconnect the brewer from the power source.

2.Remove the black and white/violet wires from the switch terminals.

3.With a voltmeter, check the voltage across the black wire removed from the ICED/OFF/HOT switch and the white wire remaining on the switch termi- nal.

4.Connect the brewer to the power source.The indi- cation must be 120 volts ac for two wire 120 volt models and three wire 120/208 volt models,

5.Disconnect the brewer from the power source.

If voltage is present as described, proceed to #6.

If voltage is not present as described, refer to the Wir- ing Diagram and check the wiring harness.

6.Check for continuity across the center and left ter- minals of the top row when switch is in the "ICED" position and the center and right terminals of the top row when the switch is in the "HOT” position.

If continuity is present as described, replace the wires, the switch is operating properly.

If continuity is not present as described, replace the switch.

Removal and Replacement:

1.Remove the wires from the switch terminals.

2.Compress the clips inside the hood and gently push the switch through the opening.

3.Push the new switch into the opening and spread the clips to hold the switch captive in the hood.

4.Refer to FIG. 21 when reconnecting the wires.

BLK to Limit Thermostat (120V or 120/208V Models)

WHI/VIO to Iced Tea

 

 

 

WHI/RED to Hot Tea

Brew Timer TL1

 

 

 

Brew Timer TL1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI to Iced Tea Brew Timer TL2 (120V or 120/208V Models)

P1367

FIG.21 ICED/OFF/HOT SWITCH TERMINALS

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Bunn TNTF-3 SERVICE cont ICED/OFF/HOT SWITCH, WHI/VIO to Iced Tea, WHI to Iced Tea Brew Timer TL2 120V or 120/208V Models