Bunn Dual Operating & Service Manual page 9

TROUBLESHOOTING (cont.)
Problem
Brew cycle will not start (cont.)
Automatic refill will not operate
Probable Cause
3. ON/OFF switch
4. Start switch
5. Timer
6. Dispense Valve
7. Control Assembly (Electronic)
1. No water
2. Water strainer/flow control
(.750 GPM)
3. Solenoid Valve
4. Limit thermostat (Electro/
mechanical and Electronic)
5. Overflow protection switch
6. (A) Level control board & level
probe. (Electro/mechanical con-
trolled)
(B) Electronic controls
Page 9
Remedy
Refer to Service - ON/OFF switch for
testing procedures. See page 32
Refer to Service - Start switch for
testing procedures. See page 37
Refer to Service - Timer for testing
procedures. See page 39 or 42
Refer to Service - Dispense valve for
testing procedures. See page 22
Refer to Service - Control assembly
for testing procedures. See pages
23 thru 28
Check plumbing and shut-off valves.
(A) Direction of flow arrow must be
pointing towards brewer.
(B) Remove the strainer/flow con-
trol and check for obstructions. Clear
or replace.
Refer to Service - Solenoid valve for
testing procedures. See page 36
Refer to Service - Limit thermostat
for testing procedures. See page 31
Refer to Service - Overflow protec-
tion switch for testing procedures.
See page 33
Refer to Service - Level control board
for testing procedures. See page 29
Refer to Service - Electronic con-
trols for testing procedures. See page
23 thru 28
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