Bunn CEZF, CDBC TROUBLESHOOTING cont BREWING CIRCUIT cont PROBLEM, Probable Cause, Remedy

TROUBLESHOOTING (cont.)

BREWING CIRCUIT (cont.)

PROBLEM

Brew cycle will not start (cont.)

PROBABLE CAUSE

8.Control board or dispense valve (CDBC-APS/TC/TS/TSR & CEZ- APS/TS/TSR)

REMEDY

If the start switch (CEZ-APS/TS/ TSR) or switch panel (CDBC-APS/ TC/TS/TSR) is operating properly, proceed as follows. Attach a volt- meter to the terminals of the dis- pense valve solenoid. Connect the brewer to the power source. Turn on the brewer and press the BREW switch. Voltage should be present at the solenoid terminals. If voltage is not present, refer to the wiring diagrams and check the wiring har- ness. If voltage is present, check for continuity across the terminals of the solenoid coil. If continuity is not present, replace the solenoid valve (See page 26). If continuity is present, the valve may be stuck closed.

Consistently low beverage level in	1. Brew volume (CDBC-APS/TC/TS/	Set up brewer according to instruc-
the dispenser or beverage overflows	TSR & CEZ-APS/TS/TSR)	tions in section Adjustments-Brew
dispenser	NOTE: All volumes to run with	Volumes. (See pages 7 or 8) Using
	sprayhead attached.	a stop watch or second hand, time
		the length of the brew cycle. Record
		this time inside the top lid. If service
		is ever needed again, use the time
		as reference to determine if time
		has changed.
	2. Lime build up	Inspect the dispense valve and
		sprayhead for excessive lime de-
		posits. Delime as required.
	3. Dispense Valve	Remove dispense valve and clear
		any obstructions. Rebuild or re-
		place valve if necessary. (See page
		26)

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