Encore Automatic PE Powder Spray Gun 21Part 1612502−01 2018 Nordson CorporationCorrective ActionPossible CauseProblem7. Low powder flow orpowder flow surgingLow supply air pressure iControl console air supply pressuremust be greater than 5.86 bar (85psi). Encore LT AutomaticControllers require 4.0−7.6 bar(58−110 psi).iFlow module air pressureregulator set too lowAdjust the iControl regulator to 5.86bar (85 psi). Refer to the iFlow AirFlow Verification Kit instruction sheet.Supply air filter plugged or filterbowl full − water contamination offlow controllerRemove bowl and drain water/dirt.Replace filter element if necessary.Clean system, replace components ifnecessary.iFlow module flow valve or EncoreLT flow valve pluggedRefer to your controller manual.Air tubing kinked or plugged Check flow and atomizing air tubingfor kinks.Pump throat worn Replace pump throat.Pump not assembled correctly Check and re-assemble pump.Pick-up tube blocked Check for debris or bag (VBF units)blocking pick-up tube.Fluidizing air too high If fluidizing air is set too high the ratioof powder to air will be be too low.Fluidizing air too low If fluidizing air is set too low the pumpwill not operate at peak efficiency.Powder hose plugged Blow out powder hose withcompressed air.Powder hose kinked Checked for a kinked powder hose.Powder hose too long Shorten hose.Gun powder path plugged Check hose connector, powder tube,and electrode support for impactfusion or debris. Clean as necessarywith compressed air.Flow and atomizing air tubingreversedCheck flow and atomizing air tubingrouting and correct if incorrect.8. No KV when gun istriggered ON, powderflow OKKV set to zero Change KV to a positive value.Check the Alarm screen formessages.Refer to your controller manual fortroubleshooting procedures.9. No powder flow whengun is triggered ON,kV OKTotal air set to zero Change the total flow to a positivevalue.Input air turned OFF Check the iControl console airsupply.10. Gun flow % does notincrement, always 0Total air set to zero If the total air is set to zero the flowpercent cannot be adjusted. Changethe total flow to a positive value.