Bunn VLPF Operating & Service Manual page 10

TROUBLESHOOTING (cont.)
PROBLEM
Decanter warmer is not hot
Spitting or unusual steaming from
sprayhead
Inconsistent beverage level in
decanter
PROBABLE CAUSE
1. Warmer switches
2. Decanter warmers
1. Control thermostat
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
initiate corrosive reactions result-
ing in serious leaks.
1. Flow control
2. Improper water pressure
Page 10
REMEDY
(A) The decanter warmer switch
must be in the upper position for
the warmer to operate.
(B) Refer to Service - On/Left or
Right switch for testing proce-
dures. See page 22 or 24.
Refer to Service - Decanter Warm-
er for testing procedures. See
page 18.
Refer to Service - Control Ther-
mostat for testing procedures.
See page 17.
Inspect the tank assembly for
excessive lime deposits. Delime
as required.
(A)Direction of flow arrow must be
pointing towards the brewer.
(B)Remove the control and check
for obstructions. Clear or re-
place.
Check the operating water pres-
sure to the brewer. It must be
between 20(138) and 90 psi(620
kPa).
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