Bunn TNTF-3 service manual Brew Timer Iced Tea - Early Models, SERVICE cont

SERVICE (cont.)	If continuity is present as described, reconnect the
BREW TIMER (ICED TEA - EARLY MODELS)	wires to terminals TL3, TL4, & TL5 of the timer board
	and proceed to #5.
	If continuity is not present as described, refer to the
	Wiring Diagram and check the wiring harness.

5. With a voltmeter, check the voltage across termi- nals TL1 and TL4 when the ICED/OFF/HOT switch is in the “ICED” position and the start switch is momentarily placed in the lower position. Con- nect the brewer to the power source. The indica- tion must be 120 volts ac for two wire 120 volt models and three wire 120/208 volt models for approximately twenty seconds and then return to its previous indication.

6. Disconnect the brewer from the power source.

				If voltage is present as described, the timer is operat-
		OLD STYLE		ing properly. Adjust the timer dial as required.
			P1391.60	If voltage is not present as described, replace the timer.
	FIG. 10 ICED TEA BREW TIMER			Removal and Replacement:
Location:				1. Remove all wires from the iced tea brew timer.
The iced tea brew timer is located in the hood on				2. Remove the circuit board and dial plate from the
the right side. It consists of the dial plate and circuit					brackets.
board.				3. Install the new timer circuit board as described in
Test Procedure:					Late Model Timer section on the following pages.
				4. Refer to Fig. 13 when reconnecting the wires.
1. Disconnect the brewer from the power source.				5. Install the Timer Setting Decal, provided with the
2. Remove the wires from terminals TL3, TL4, & TL5					timer replacement kit, on the bottom of the hood
of the iced tea timer and rotate the dial fully coun-					cover.
terclockwise.				6. Adjust the timer as required. See Late Model Timer
2. With a voltmeter, check the voltage across termi-					Section on the following pages.
nals TL1 and TL2 when the ICED/OFF/HOT switch
is in the “ICED” position. Connect the brewer to						WHI to Power Cord (120V Models)
the power source. The indication must be 120						or WHI to Terminal Block 120/208V
						Models)
volts ac for two wire 120 volt models and three
wire 120/208 volt models.							WHI/RED to Hot Tea Brew Solenoid
3. Disconnect the brewer from the power source.							WHI/RED to ICED/OFF/HOT Switch
If voltage is present as described, proceed to #4.					ORN to Start Switch
If voltage is not present as described, refer to the Wir-					WHI/BLU to Iced Tea
ing Diagram and check the wiring harness.					Brew Solenoid
					YEL to Start Switch
4. Check for continuity across the orange and yel-
low wires when the start switch is held in the lower					OLD STYLE
position.
								P1365.85
					FIG. 11 ICED TEA BREW TIMER TERMINALS
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