Bunn TU3Q service manual Problem Probable Cause Remedy

Models: TU3Q

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TROUBLESHOOTING (cont.)

 

 

PROBLEM

PROBABLE CAUSE

REMEDY

Weak beverage (cont.)

4. Funnel Loading

The BUNN¨ paper filter must be

 

 

centered in the funnel and the bed

 

 

of tea leaves leveled by gentle shak-

 

 

ing.

 

5. Water Temperature

Place an empty funnel on an empty

 

 

dispenser beneath the sprayhead.

 

 

Initiate a brew cycle and check the

 

 

water temperature immediately be-

 

 

low the sprayhead with a thermom-

 

 

eter. The reading should not be less

 

 

than 200°F (93°C). Adjust the con-

 

 

trol thermostat to increase the wa-

 

 

ter temperature. Replace if neces-

 

 

sary.

 

6. Low Brew Water Volume

Adjust needle valve to achieve 76

 

 

oz. water from the sprayhead. To

 

 

increase volume, turn counter-

 

 

clockwise. To decrease volume,

 

 

turn clockwise.

Dry tea leaves remain in the funnel

1. Funnel Loading

The BUNN¨ paper filter must be

 

 

centered in the funnel and the bed

 

 

of tea leaves leveled by gently shak-

 

 

ing.

Brewer is making unusual noises

1. Solenoid(s)

The nut on the solenoid(s) must be

 

 

tight or it will vibrate during opera-

 

 

tion.

 

2. Plumbing Lines

Plumbing lines should not be rest-

 

 

ing on the counter top.

 

3. Water Supply

(A) The brewer must be connected

 

 

to a cold water line.

 

 

(B) Water pressure to the brewer

 

 

must not exceed 90 psi (621 kPa).

 

 

Install a regulator if necessary to

 

 

lower the working pressure to ap-

 

 

proximately 50 psi (345 kPa).

 

4. Tank Heater

Remove and clean lime off the tank

 

 

heater. See page 23.

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Bunn TU3Q service manual Problem Probable Cause Remedy