Bunn TB6Q manual Inlet Valves

SERVICE (cont.)

INLET VALVES

three wire 120/240 volt models.

b) 200 to 230 volts ac for two wire 200 or 230 volt

models.

7.

Disconnect the brewer from the power source,

If voltage is present as described, proceed to #8

If voltage is not present as described, refer to Wiring

Diagrams and check brewer wiring harness.

8.

Check for continuity across the solenoid termi-

nals.

If continuity is present as described, reconnect the

white and black wire from the timer.

If continuity is not present as described, replace the

FIG. 17-1 INLET VALVES

solenoid valve.

Location:

Removal and Replacement:

The solenoid valve(s) are located inside the trunk

1.

Disconnect the brewer from the power source.

on the lower center part of the component bracket. So-

2.

Turn off the water supply to the brewer.

lenoids in the early models are located in the hood.

3.

Remove the wires from the solenoid.

Test Procedures:

4.

Disconnect the water lines to and from the solenoid

valve.

1. Check the solenoid valve for coil action. With "ON/

5.

Remove the two screws securing the solenoid

OFF" switch in the "ON' upper position press start

mounting bracket to the component bracket.

switch and listen carefully in the vicinity of the

6.

Install new solenoid valve to the component

solenoid valve for a" clicking" sound

as the coil

bracket.

magnet attracts.

7.

Securely fasten the water lines to and from the

2. Disconnect the brewer from the power source.

solenoid valve.

If the sound is heard as described and water will not

8.

Refer to schematics when reconnecting the

wires.

pass through the solenoid valve, there may be a block-

age in the water line before the solenoid valve or, the

solenoid valve may require inspection for wear, and

removal of waterborne particles.

If the sound is not heard as described,

proceed to

#3.

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