Bunn BrewWise DBC Service Manual page 8

TROUBLESHOOTING (cont.)
Problem
Equipment will not operate.
Brew cycle will not start.
Automatic refill will not operate
or display shows FILL TIME TOO
LONG
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/flow control
(.750 GPM)
Page 8
Troubleshooting Procedure
Measure the voltage at the terminal
block and confirm that it matches
the voltage specified on the brewer
data plate within +/- 10%.
Check plumbing and shut-off
valves
Test the ON/OFF switch. Refer to the
switch test procedures in SERVICE
TOOLS section.
Test the BREW switch. Refer to the
switch test procedures in SERVICE
TOOLS section.
Test the Brew valve. Refer to Testing
Individual Components in SERVICE
TOOLS section.
Substitute a control board known to
be in good working order.
Check plumbing and shut-off
valves.
(A) Direction of flow arrow must be
pointing towards direction of water
flow.
(B) Remove the strainer/flow control
and check for obstructions. Clear or
replace.
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