Bunn VLPF Operating & Service Manual page 12

TROUBLESHOOTING (cont.)
PROBLEM
Weak beverage (cont.)
Brewer is making unusual noises
PROBABLE CAUSE
4. Funnel loading
5. Water temperature
1. Solenoid valve
2. Plumbing lines
3. Water supply
Page 12
REMEDY
The BUNN paper filter should be
®
centered in the funnel and the bed
of ground coffee leveled by gentle
shaking.
Empty a decanter and place it on
the left warmer. Insert an empty
funnel into the funnel rails. Place
the On/left switch in the upper
position. Press the Start switch
and check the water temperature
immediately below the sprayhead
with a thermometer. The reading
should not be less than 195° F.
Adjust the control thermostat
slightly clockwise to increase the
water temperature.
The nut on top of the solenoid
valve must be tight or it will vibrate
during operation.
Plumbing lines should not be rest-
ing on the counter top.
(A) The brewer must be connected
to a cold water line.
(B) Water pressure to the brew-
er must not be higher than 90
psi(620 kPa). Install a regulator
if necessary to lower the work-
ing pressure to approximately 50
psi(345kPa).
10179 060100