Bunn VPR APS service manual TROUBLESHOOTING cont, Problem, Probable Cause, Remedy

TROUBLESHOOTING (cont.)
PROBLEM	PROBABLE CAUSE
Dripping from sprayhead	1. Lime Build-up
	CAUTION - Tank and tank com-
	ponents should be delimed
	regularly depending on local
	water conditions. Excessive min-
	eral build-up on stainless steel
	surfaces can initiate corrosive
	reactions resulting in serious
	leaks.

REMEDY

Inspect the tank assembly for excessive lime deposits. Delime as required.

Beverage overflows dispenser	1. Dispenser	The dispenser must be com-
		pletely empty before starting a
		brew cycle.
Weak beverage	1. Filter Type	BUNN® paper filters must be used
		for proper extraction.
	2. Coffee Grind	A fine or drip grind must be used
		for proper extraction.
	3. Sprayhead	A six-hole stainless steel spray-
		head must be used for proper
		extraction.
	4. Funnel Loading	The BUNN® paper filter must be
		centered in the funnel and the
		bed of grounds leveled by gentle
		shaking.
	5. Water Temperature	Place an empty funnel on an empty
		dispenser beneath the sprayhead.
		Pour-in a pitcher of tap water and
		check the water temperature im-
		mediately below the sprayhead
		with a thermometer. The reading
		should not be less than 195°F.
		Adjust the control thermostat to
		increase the water temperature.
		Replace if necessary.

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