Bunn CWTF - Manual (Page 16)

Page 16
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 person-
nel.
• 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.
• 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 switch contact or a loose connection at a
terminal or crimp.
• 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. 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
Inconsistent beverage level
Consistently low or high bever-
age level.
PROBABLE CAUSE
1. ON/LOWER Switch is off.
2. No power
3. No water
1. Heater switch turned off.
1. Lime Build-up
2. Water Pressure fluctuating.
1. Timer adjustment.
REMEDY
Turn on switch.
(A) Turn on main power switch.
(B) Check that the power cord is
securely plugged into outlet.
(C) Check circuit breakers or
fuses.
(A) Water lines and valves to the
brewer must be open.
(B) Check for plugged water filter
Turn on switch
(A) Use deliming spring.
(B) Clean sprayhead. (Page 11)
Have a pressure regulator In-
stalled.
Adjust timer (Page 10)
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