Bunn JDF-2N Manual Do Utilizador

21

38310 010406

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.

•  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.

All water LED's flash.

All dispense stations not working 

or all water & refill LED's flash and 

beep 3 times.

Note: Cooling failure or excessive 

bath and cabinet temperatures for 

m  ore  than  4  hours  will  result  in 

touchpad lockout or no dispense.

Note: Reset faul/timer by unplug-

ging unit.

1. Bath water level low.

1. Cabinet cooling fan.

2. Bath recirculation pump.

3. Restricted water flow to cabinet 

water coil and bath.

Access  bath  fill  valve  and  top  off 

bath tank.

Replace fan (24vdc).

Note: Fan receives power when door 

switch is closed.

A)  If  not  running,  replace  pump 

(120vac).

B)  If  no  power,  replace  control 

board. 

Clean  or  replace  cabinet  water 

strainer  or  recirculating  manifold 

or check for kinked hose.