Bunn FMD DBC-3 Operating & Service Manual page 11

TROUBLESHOOTING (cont.)
PROBLEM
Water is not hot (cont.)
Spitting or excessive steaming
Dripping from dispense tip
Water flows into tank continuously
PROBABLE CAUSE
2. Control Thermostat
3. Tank Heater
4. Tank Heater Switch
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
initiate corrosive reactions result-
ing in serious leaks.
2. Control Thermostat
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
initiate corrosive reactions result-
ing in serious leaks.
2. Dispense Solenoid Valve
(Hot or Cold)
1. Control Board
2. Solenoid Valve (Inlet)
11
REMEDY
Refer to Service - Control Thermo-
stat for testing procedures. See
page 24
Refer to Service - Tank Heater for
testing procedures. See page 39
Refer to Service - Tank Heater
Switch for testing procedures. See
page 40
Inspect tank assembly for exces-
sive lime deposits. Delime as
required.
Refer to Service - Control Thermo-
stat for testing procedures. See
page 24
Inspect the tank assembly for
excessive lime deposits. Delime as
required.
Remove the dispense solenoid
valve and clear any obstructions.
Rebuild or replace the valve if
necessary. See page 35 or 36
Refer to Service - Control Board
and Probe for testing procedures.
See page 22
Refer to Service - Solenoid Valve
(Inlet) for testing procedures. See
page 38
29215 101599