Bunn TU3 TROUBLESHOOTING cont, Problem, Probable Cause, Remedy, Dilution Solenoid Valve, page

Models: TU3

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TROUBLESHOOTING (cont.)

 

 

PROBLEM

PROBABLE CAUSE

REMEDY

Dilution cycle will not start (cont.)

4. Dilution Solenoid Valve

Refer to Service - Dilution Solenoid

 

 

Valve for testing procedures. See

 

 

page 21

Inconsistent beverage level in dis- penser

1. Internal Flow Control (.195 GPM)

2.Syphon System

3.Lime Build-up

CAUTION - Tank and tank compo- nents should be delimed regularly depending on local water condi- tions. Excessive mineral build-up on stainless steel surfaces can ini- tiate corrosive reactions resulting in serious leaks.

(A)Direction of flow arrow must be pointing towards the brewer.

(B)Remove the flow control and check for obstruction. Clear or re- place.

The brewer must be level or slightly lower in front to syphon properly.

Inspect the tank assembly for ex- cessive lime deposits. Delime as required.

 

4.

Water Pressure

The water pressure to the brewer

 

 

 

must be at least 20 psi (138 kPa).

Consistently high or low beverage

1.

Brew Timer/Delay Timer

With the ON/OFF switch "ON" adjust

level in the dispenser

 

 

the brew timer to achieve the rec-

 

 

 

ommended 76 oz. of concentrate

 

 

 

then the dilution timer to achieve a

 

 

 

total of 396 oz. for each three-gal-

 

 

 

lon brew cycle.

 

2.

External Strainer/Flow Control

(A) Direction of flow arrow must be

 

(.750GPM)

pointing towards brewer.

(B) Remove the strainer/flow con- trol and check for obstructions. Clear or replace.

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Bunn TU3 service manual TROUBLESHOOTING cont, Problem, Probable Cause, Remedy, Dilution cycle will not start cont, page