Filter
Top Products
Page 5
TROUBLESHOOTING
A troubleshooting guide is provided to suggest probable causes and remedies for the most likely
problems encountered. If the problem remains after exhausting the troubleshooting steps, contact the
Bunn-O-Matic Technical Service Department.
• Inspection, testing, and repair of electrical equipment should be performed only by qualified service
personnel.
• All electronic components have 120 volt ac and low voltage dc potential on their terminals. Shorting
of terminals or the application of external voltages may result in board failure.
• If an intermittent condition is encountered, the cause will likely be a switch contact or a loose
connection at a terminal or crimp.
• This brewer is heated at all times. Keep away from combustibles.
WARNING– • Exercise extreme caution when servicing electrical equipment.
• Unplug the brewer when servicing, except when electrical tests are specified.
• Follow recommended service procedures
• Replace all protective shields or safety notices
PROBLEM
Brew cycle will not start
Water is not hot
PROBABLE CAUSE
1. No water
2. No power
1. Tank Heater Switch
2. Limit Thermostat
CAUTION - Do not eliminate
or bypass limit thermostat.
Use only BOM replacement
part #29329.7000
3. Control Thermostat
4. Tank Heater
REMEDY
Check fill basin for obstructions.
Be sure the brewer is con-
nected to the power source.
Check circuit breakers or
fuses.
Refer to
Service
- Tank Heater
Switch for testing procedures.
See page 15
Refer to
Service
- Limit Thermo-
stat for testing procedures. See
page 10.
Refer to
Service
- Control Ther-
mostat for testing procedures.
See page 8.
Refer to
Service -
Tank
Heater for testing proce-
dures. See page 12.