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If you encounter a problem that you cannot readily solve, call EFD.
Trouble Possible cause and correction
No power Be sure that there is power at the wall receptacle. Note: there is a resettable
internal fuse on the Ultra 2400 unit, so there is no need to ever replace the fuse.
Allow unit to cool down, and it will reset itself as necessary.
Auxiliary output Insure that the load does not exceed 100mA. If the output has been overloaded,
is not functioning remove the load and allow circuit to cool. The circuit will reset itself.
Inconsistent dots 1. Check dispensing tip, syringe barrel and material for possible clogging.
2. Check dispenser air pressure display to be sure air pressure is not varying. If
needed, use the filter regulator (EFD part #2000F755).
3. Air bubbles in the material can cause inconsistency. For best results, remove
all air bubbles.
Timer seems Check to be sure you are not in STEADY mode. The upper left corner of the
inoperative display should read TIMED or MEMORY.
Note: The EFD timer is very reliable. Any failure will be total, so that no
inconsistency is possible. Most questions regarding the timer are resolved by
simply turning STEADY mode off.
Material suck-back 1. Use a SmoothFlow piston or LV Barrier to prevent material being drawn into
the dispenser.
2. Another option is the order the vacuum suck-back filter trap accessory, which
is guaranteed to prevent fluid for leaking into the dispenser. Order EFD part
#2435.
3. If suck-back occurs, attach an empty barrel, put in STEADY mode, place the
barrel in a cup, then press the foot pedal to expel the fluid.
4. If the problem cannot be corrected, contact an EFD Fluid Application
Specialist for assistance.
Dispensers can be returned to EFD for repair.
Display backlight The Ultra workstation is in sleep/power save mode. Press any button or press
is off the foot pedal to reactivate.
Voltage initiate Check to see that the voltage is between 5 and 24 VDC and the current does
does not function not exceed 100mA.
Air leaking from Air from the exhaust is normal when vacuum is used. If vacuum is completely
exhaust port off and you still hear air, make sure plant air supply to your unit is set to within
80 to 100 psi (5.5 to 6.9 bar).
Troubleshoot
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