If you encounter a problem that you cannot readily solve, call EFD.
Trouble Possible cause and correction
No power Check the fuses and replace as needed. Follow these steps:
1. Disconnect the power to the unit prior to performing this service.
2. Locate the power entry module on the lower left corner of the rear panel.
3. If the electrical cord is still connected to the back of the unit, remove it now.
4. There is a small vertical slot just to the right of the red window on the power
entry module. Insert a small screwdriver in the slot to pry latch open.
Door swings open to the left.
5. Pull out the red fuse tray. Note the location and orientation of the fuses.
6. Pull both fuses out of the fuse tray and discard.
7. Replace both with 1.0A/250 VAC 5x20 mm fuses (EFD part #28139 or
equivalent). Orient the fuses in the same manner as the fuses that were removed.
8. Insert fuse tray back into power module, close fuse door and reconnect power.
Blow by If you are dispensing a watery-thin fluid, request the EFD yellow wiper piston,
available for the Ultra 2800-30 model only. Specify EFD part # A678-B.
Oozing 1. There is too much fluid compression in the syringe barrel. Change to a fresh
dispense tip and start over. If needed, switch a slower dispense rate.
2. The plunger has become disengaged from the piston. To check, unscrew the
retainer from the adapter and turn the syringe barrel upside down. If the syringe
barrel falls off, the plunger is disengaged. See the handout, “Syringe Barrel
Attachment Guide,” for step-by-step instructions on how to properly engage the
plunger and piston.
Inconsistent 1. There is air in the syringe barrel, either entering the barrel during filling, or from
shot size excessive Pullback. Eliminate air from the barrel, or adjust the Pullback.
2. The Dispense Rate may be too fast for the combination of fluid viscosity and
dispense tip. Reduce the Dispense Rate.
3. The plunger is fouled. Remove the syringe and clean as needed. Also, check
dispensing tip, barrel and material for possible clogging. For best results,
change the dispense tip.
4. You may need to adjust the pre-load adjustment block. See page 19.
Dispense Rate If nothing seems to happen when you press the (+) or (-) button to manually adjust
does not adjust the Dispense Rate, the rate may already be set to a very low speed. Try switching to
the preset default for Medium.
Service The interior mechanics of the Ultra 2800 system are not field serviceable.
Attempting to repair or service the unit by removing the enclosure cover voids
factory warranty. Please contact your EFD service representative for assistance.
Troubleshoot
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