Bunn H5E H5X service manual Problem, Probable Cause, Remedy, TROUBLESHOOTING cont

TROUBLESHOOTING (cont.)
Problem	Probable Cause		Remedy
Water boils continuously.	1.	Temperature control	Refer to Service – electronic controls for
			testing procedures. See page 10.
	2.	Lime build-up	Inspect the tank assembliy for excess lime
			deposits. Delime as required.

CAUTION – Tanks and tank components should be delimed reglarly 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.

Ready indicator will not light. (when temperature is within 4° of its selected setting.)

1.Solenoid valve

2.Plumbing lines

3.Water supply

1.Temperature control

2.Ready Indicator LED

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

Plumbing lines should not be resting 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 (620 kPa). Install a regulator if necessary to lower the work- ing pressure to approximately 50 psi (345 kPa).

Refer to Service – electronic controls for testing procedures. See page 10.

Replace the indicator LED.

8 10420 072500