Bunn DUAL SH DBC Operating Manual page 45

TROUBLESHOOTING (cont.)
Problem
Equipment will not operate.
Brew cycle will not start.
Automatic refi ll will not operate
or display shows FILL TIME TOO
Possible Cause
1. No power or incorrect voltage.
1. No water
2. ON/OFF switch
3. Brew switch
4. Brew Valve
5. Electronic Control Board
1. No water
2. Water strainer/fl ow control
(.750 GPM)
Page 45
Troubleshooting Procedure
Measure the voltage at the terminal
block and confi rm that it matches
the voltage specifi ed on the brewer
data plate within +/- 10%.
Check plumbing and shut-off
valves
Test the ON/OFF switch. Refer to the
switch test procedures on pages
37-39.
Test the BREW switch. Refer to the
switch test procedures on pages
37-39.
Test the Brew valve. Refer to Testing
Individual Components on pages
37-39.
Substitute a control board known to
be in good working order.
Check plumbing and shut-off
valves.
(A) Direction of fl ow arrow must be
pointing towards direction of water
fl ow.
(B) Remove the strainer/fl ow control
and check for obstructions. Clear or
replace.
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