Bunn TU3 Operating & Service Manual page 10

TROUBLESHOOTING (cont.)
PROBLEM
Brew cycle will not start (cont.)
Water is not hot
Dilution cycle will not start
PROBABLE CAUSE
4. ON/OFF Switch
5. Start Switch
6. Brew Timer
7. Brew Solenoid Valve
8. Internal Flow control (.195 GPM)
1. Limit Thermostat
CAUTION - Do not eliminate or by-
pass limit thermostat or thermal
cut-off. Use only BOM replacement
part 29329.1000
2. Control Thermostat
3. Tank Heater
1. ON/OFF Switch
2. Start Switch
3. Dilution Timer
Page 10
REMEDY
Refer to Service - ON/OFF Switch
for testing. See page 24
Refer to Service - Start Switch for
testing procedures. See page 26
Refer to Service - Brew Timer for
testing procedures. See page 17 or
18
Refer to Service - Brew Solenoid
Valve for testing procedures. See
page 16
(A) Direction of flow arrow must be
pointing towards brewer.
(B) Remove the flow control and
check for obstructions. Clear or re-
place.
Refer to Service - Limit Thermostat
for testing procedures. See page 23
Refer to Service - Control Thermo-
stat for testing procedures. See
page 20
Refer to Service - Tank Heater for
testing procedures. See page 28
Refer to Service - ON/OFF Switch
for testing procedures. See page 24
Refer to Service - Start Switch for
testing procedures. See page 26
Refer to Service - Dilution Timer for
testing procedures. See page 22
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