Bunn ICB Coffeemaker User Manual


 
Page 65
TROUBLESHOOTING (cont.)
PROBLEM PROBABLE CAUSE REMEDY
Inconsistent beverage level in
server/dispenser
Direction of fl ow arrow must be
pointing towards the brewer. Re-
move the strainer and check for
obstructions. Clear or replace.
Check operating water pressure to
the brewer. It must be between 20
and 90 psi (138 and 620 kPa).
Test the brew valve. Refer to test
outputs on page 48. Turn the valve
on for 30 seconds and collect the
water dispensed from the spray-
head. Repeat the test several times
to confi rm a consistent volume of
dispensed water. If not consistent,
check the valve, tubing and spray-
head for lime buildup.
If bypass is being used on the in-
consistent brewing recipe, test the
bypass valve. Refer to test outputs
on page 48. Turn the valve on for
30 seconds and collect the water
collected from the funnel. Repeat
the test several times to confi rm
a consistent volume of dispensed
water. If not consistent, check the
valve, tubing and fi ttings for lime
buildup.
Inspect for lime buildup that could
block the tank, tank fi ttings, tubing,
valves and sprayhead.
Adjust the brew volume, calibrate
sprayhead and bypass as required
to achieve the desired volume for
1. Strainer
2. Improper water pressure
3. Brew valve
4. Bypass valve
5. Lime buildup
6. Brew volume adjustment
37077 091704