Bunn H5X Service & Repair Manual page 6

TROUBLESHOOTING (cont.)
Problem
Water boils continuously.
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.
Probable Cause
1. Temperature control
2. Lime build-up
1. Plumbing lines
3. Water supply
1. Temperature control
2. Ready Indicator LED
6
Remedy
Refer to Service – electronic controls for
testing procedures.
Inspect the tank assembliy for excess lime
deposits. Delime as required.
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.
Replace the indicator LED.