Service Manual

8
TROUBLESHOOTING (cont.)
PROBLEM PROBABLE CAUSE REMEDY
BREWING CIRCUIT (cont.)
Dripping from sprayhead
Weak beverage
Dry coffee grounds remain in the
funnel
Low beverage serving tempera-
ture
1. Lime build up
2. Dispense valve
1. Sprayhead
2. Water temperature
3. Filter type
4. Coffee grind
5. Funnel loading
1. Sprayhead
2. Funnel loading
1. Thermal server/airpot not pre-
heated before brew cycle
Inspect the tank assembly for ex-
cessive lime deposits. Delime as
required.
Check/replace
A clean sprayhead must be used for
proper extraction.
Place an empty brew funnel on an
empty decanter beneath the spray-
head. Initiate brew cycle and check
the water temperature immediately
below the sprayhead with a ther-
mometer. The reading must not be
less than 195°F (91°C). Adjust the
temperature setting to increase the
water temperature. Refer to Initial
Set-up instructions.
BUNN® paper filters must be used
for proper extraction.
A fine drip or grind must be used
for proper extraction.
The BUNN® paper filter must be
centered in the funnel and the bed
of grounds leveled by shaking
gently.
Make sure sprayhead is present and
holes are clear and unobstructed.
The BUNN® paper filter must be
centered in the funnel and the bed
of grounds leveled by shaking
gently.
Preheat server
54299 070517