Bunn Dual TF - Manual (Page 11)

Page 11
TROUBLESHOOTING (cont.)
Weak beverage
Brewer is making unusual noises.
1. Type of paper filters
2. Coffee
3. Sprayhead
4. Funnel loading
5. Water temperature
1. Solenoid (Inlet)
2. Plumbing lines
3. Water supply
4. Tank Heaters
5. Contactor
BUNN ® paper filters should be used
for proper extraction.
A sufficient quantity of fresh drip or
regular grind should be used for
proper extraction.
B.O.M. sprayhead #01082.0002
should be used to properly wet the
bed of ground coffee in the funnel.
The BUNN ® paper filter should be
centered in the funnel and the bed of
ground coffee leveled by gentle shak-
ing.
Empty the server, remove its cover.
Place empty funnel over the server
entrance, with ON/OFF switch in the
"ON" position press the start switch
and release it. Check the water tem-
perature immediately below the
sprayhead with a thermometer. The
reading should not be less than 195
°
F (76
°
C).
The nut on back of the solenoid
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 brewer
must not be higher than 90 psi (620
kPa). Install a regulator if necessary
to lower the working pressure to
approximately 50 psi (345 kPa).
Remove and clean lime off tank heat-
ers.
Check for low voltage
Problem Probable Cause Remedy
27124 050800