Bunn H10X service manual Problem, Probable Cause, Remedy, Water is cold cont

TROUBLESHOOTING (cont.)
PROBLEM	PROBABLE CAUSE		REMEDY
Water is cold (cont.)	3.	Tank heater	Refer to Service - Tank heater for
			testing procedures. See page 19.
	4.	Temperature control	Refer to Service - Electronic controls
			for testing procedures. See page 12.
			Check connections to Interlock
	5.	Dry plug protection	board and sheath of tank tempera-
			ture probe.
			Refer to Service - Electronic controls
Water boils continuously.	1.	Temperature control	for testing procedures. See page 12.
			Inspect the tank assembly for excess
	2.	Lime build-up	lime deposits. Delime as required.

CAUTION - Tanks and tank components should be delimed regularly depending on local water conditions. Exces- sive mineral build-up on stainless steel surfaces can initiate corrosive reactions resulting in serious leaks.

Dispenser is making unusual noises. 1. Solenoid valve

2. Plumbing lines

3. Water supply

Ready indicator will not light. (when

temperature is within 4˚ of its se- 1. Temperature control lected setting.)

2. Ready Indicator LED

The nut on top of the solenoid valve must be tight or it will vibrate dur- ing operation.

Plumbing lines should not be rest- ing on the counter top.

(A)the dispenser must be connected to a cold water line.

(B)Water pressure to the dispenser must not be higher than 90 psi. In- stall a regulator if necessary to lower the working pressure to approxi- mately 50 psi.

Refer to Service - Electronic controls for testing procedures. See page 12.

Replace the indicator LED.

8 10889 072700