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BUNN Espress
®
ES•2C
™
12
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 at (800) 637-8606.
• Inspection, testing, and repair of electrical equipment should be performed only by qualified service
personnel.
• Solenoid removal requires interrupting the water supply to the valve. Damage may result if solenoids are
energized for more than ten minutes without a supply of water.
• The use of two wrenches is recommended whenever plumbing fittings are tightened or loosened. This will
help to avoid twists and kinks in the tubing.
• Make certain that all plumbing connections are sealed and electrical connections tight and isolated.
• This brewer is heated at all times unless disconnected from the power source. Keep away from
combustibles.
• All electronic components have 208-240 volt ac and low voltage dc potential on their terminals. Shorting
of terminals or the application of external voltages may result in board failure.
• Intermittent operation of electronic circuit boards is unlikely. Board failure will normally be permanent. If
an intermittent condition is encountered, the cause will likely be a loose connection at a terminal or crimp.
WARNINGS
• Exercise extreme caution when servicing electrical equipment.
• Disconnect the brewer from the power source when servicing, except when specified.
• Follow recommended service procedures.
• Replace all protective shields and safety notices.
PROBLEM PROBABLE CAUSE REMEDY
Equipment will not operate
Brew cycle will not start
No power or incorrect voltage
Power switch
No water
Water treatment or strainer
Connect the brewer to the power source.
Check for proper voltage.
Check circuit breaker/fuse.
Must be in the “ON” position.
Power indicator will glow.
Check plumbing and shut off valves.
Direction of flow arrows must be
pointing toward the brewer.
Remove the strainer and/or water
softener and check for obstructions.
Clear or replace.