Bunn ITB/ITCB, ICB/TWIN TROUBLESHOOTING cont BREWING CIRCUIT, Problem, Probable Cause, Remedy

TROUBLESHOOTING (cont.)

BREWING CIRCUIT

PROBLEM		PROBABLE CAUSE		REMEDY
Brew cycle will not start		1. Display's error message		Brewer has shut down due to mal-
				function. See Diagnostics.
	2.		No water	Water lines and valves to the brewer
				must be open.
		3. No power or incorrect voltage to		Check for voltage across the termi-
		the brewer		nals at the terminal block.
	4.		ON/OFF switch not in the "ON"	The indicator lamp must be lit
		position
	5.		Low water temperature (Brew	Allow brewer to heat until ready, or
		lockout is enabled)		disable the brew lockout feature.
				Water must be in contact with refill
	6.		Water not touching refill probe	probe before brew cycle will start.
		inside tank
	7.		Membrane Switch	Check/replace
	8.		Dispense valve	Check/replace
	9.		Control board	Check/replace
Consistently low beverage level in		1. Brew volume		Inspect the dispense valve and
the dispenser or beverage overflows		NOTE: Volume adjustments must be		sprayhead for excessive lime de-
dispenser		made with sprayhead installed.		posits. Delime as required.
	2.		Lime build up	Remove dispense valve and clear
				any obstructions. Rebuild or replace
				valve if necessary. (See page 24)
	3.		Dispense Valve	Check/replace

7 42461 0911809