Bunn JDF-2S Beverage Dispenser User Manual


 
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 120-240 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 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.
WARNING Exercise extreme caution when servicing electrical equipment.
Unplug the dispenser when servicing, except when electrical tests are specified.
Follow recommended service procedures.
Replace all protective shields or safety notices.
Cold Water Circulation
Dispense stations not working.
Note: Cooling failure or excessive
cabinet temperatures for more
than 4 hours will result in dispense
lockout or no dispense.
Note: Reset fault/timer by unplug-
ging unit.
1. Cabinet cooling fan.
2. Bath recirculation pump.
3. Restricted water flow to cabinet
water coil and bath.
Replace fan (24vdc).
Note: Fan receives power when the
dispenser is powered.
A) If not running, check refrigera-
tion switch and wiring for proper
continuity.
B) Check for 120V or 230V AC at
pump. Replace pump.
Check for kinked hose.
PROBLEM
PROBABLE CAUSE
REMEDY
38945 061506