Bunn Dual TF User Manual download pdf (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

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