Bunn TU3 service manual TROUBLESHOOTING cont PROBLEM, Probable Cause, Remedy

TROUBLESHOOTING (cont.)

PROBLEM

Spitting or excessive steaming

PROBABLE CAUSE

1. Lime Build-up

CAUTION - Tank and tank compo- nents should be delimed regularly depending on local water condi- tions. Excessive mineral build-up on stainless steel surfaces can ini- tiate corrosive reactions resulting in serious leaks.

REMEDY

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

Drip-out time too long

2.	Control Thermostat	Refer to Service - Control Thermo-
		stat for testing procedures. See
		page 20
1.	Funnel Tip	The brew funnel should be cleaned
		thoroughly before each brew cycle
		to lessen the chance of tea leaf par-
		ticles clogging the drip-out tip.

Dripping from sprayhead

1.Syphon System

2.Lime Build-up

CAUTION - Tank and tank compo- nents should be delimed regularly depending on local water condi- tions. Excessive mineral build-up on stainless steel surfaces can ini- tiate corrosive reactions resulting in serious leaks.

The brewer must be level or slightly lower in front to syphon properly.

Inspect the tank assembly for ex- cessive lime deposits. Delime as required.

Water flows into tank continuously (ON/OFF Switch "ON")

Water flows into tank continuously (ON/OFF Switch "OFF")

3.	Brew Solenoid Valve	Refer to Service - Brew Solenoid
		Valve for testing procedures. See
		page 16
1.	Brew Timer	Refer to Service - Brew Timer for
		testing procedures. See page 16 or
		18
1.	Brew Solenoid Valve	Refer to Service - Brew Solenoid
		Valve for testing procedures. See
		page 16

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