Bunn ITB, TWIN manual to the test switch procedures on, outputs procedures on page

Models: ITB TWIN

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TROUBLESHOOTING (cont.)

 

 

 

 

 

PROBLEM

 

PROBABLE CAUSE

 

REMEDY

 

Brew cycle will not start

1. No water

 

Check plumbing and shut-off

 

 

 

 

 

 

valves

 

 

 

2. No power or incorrect voltage to

 

Check for voltage across the termi-

 

 

 

the brewer

 

nals at the terminal block.

 

 

 

3.

ON/OFF switch

 

Test the ON/OFF switch. Refer

 

 

 

 

 

 

to the test switch procedures on

 

 

 

 

 

 

page 50.

 

 

 

4.

Brew switch

 

Test the BREW switch. Refer to the

 

 

 

 

 

 

test switch procedures on page

 

 

 

 

 

50.

 

 

 

5.

Brew valve

 

Test the brew valve. Refer to the test

 

 

 

 

 

 

outputs procedures on page 48.

 

 

 

6.

Control Board

 

Substitute a control board known

 

 

 

 

 

 

to be in good working order.

Page 31

41581.2 091609

 

Page 31
Image 31
Bunn ITB, TWIN manual to the test switch procedures on, outputs procedures on page, Substitute a control board known