Bunn F-20 Coffeemaker User Manual


 
r
,
SYMPTOM
POSSIBLE CAUSE
WHAT TO CHECKREMEDY
DRY COFFEE
1.
FiIters. 1.Check if Bunn Filters
1.Bunn Filters should
REMAINING IN
are being used.
always be used.
BREW FUNNEL
2.
Not siphoning
2.
Refer to "Dripping"
2.
Refer to "Dripping"
AFTER BREW
CYCLE HAS
properly.
sectiOfl, step 1.
section, step 1.
BEEN COMPLETED
3.Wrong sprayhead.
3.
Number of sprayhead
3.
A 6-hole sprayhead
holes.
should be used.
'4.
Improper loading
4.Filter and coffee
4.
Filter should be
of funnel.
in funnel.
centered in funnel
and coffee bed shouldbe level.
5.
Missing sprayhead.
5.
Check for sprayhead.
5.
InstaII sprayhead.
WEAK COFFEE
1.
FiIters. 1.
Check if Bunn Filters
1.Bunn Filters should
are being used.
always be used.
2.
Water temperature
2.
Check water temperature.
2.
Adiust control thermo-
.t~o low.
Refer to "Initial Operation
stat knob clockwise
Instructions" steps 6 & 7.
to a higher setting.
3.
Not siphoning
3.
Refer to "Dripping"
3.
Refer to "Dripping"
properly.
section, step 1.section, step 1.
4.
Improper loading
4.
Filter and coffee
4.Filters should be
of funnel.
in funnel.
centered in funnel
and coffee bed should
be level.
5.
Missing sprayhead.
5.
Check for sprayhead.
5.
Install sprayhead.
,
SOLENOID
1.
Brewer connected
1.
Incoming water line.
1.
Brewer should be
CHATTER OR
to hot water.
connected to Cold
HOWLING
water line.
2.
Vibration.
2.
If brewer is on a
2.
Adjust as necessary.
metal stand or
counter, check to
see that neither
bottom pan norcopper tubing to
brewer is touching
counter.
3.
60 cycle vibration.
3.
Check tightness of
3.
Tighten nut on top of
the nut on top of
solenoid valve.
the solenoid valve.
4.
High water pressure.
4.
Water pressure on
4.
If water' pressure is
incoming line.
over 90 PSI install
pressure regulatorand adjust to 50 PSI.
5.
Water hammer.
5.
Incoming plumbing.
5.
This is not the fault
of the brewer. It
can usually be corrected
by rearranging someplumbing or adding
an air chamber to the
incoming water line.
COLD WARMER
1.
Warmer-defective. 1.
Voltage at warmer
1.
If voltage is present
STATION
terminals. Should
on terminals, but
be 120 volts A.C.
warmer will not heat,
replace warmer.
2.
Warmer On-Off Switch.
2.If voltage is not
2.
If switch does not make
present on warmer
and break when turned
terminals, check
on and off, replace
continuity o.~switch.
switch.
3.
Bad harness
3.
Check connections
3.
Be sure all connections
connection.
between harness and
are tight.
switch and switch and warmer.
FACTORY AUTHORIZED SERVICE
7