FORM NO. 56043093 / Captor ™ 4300, 4800, 5400 / CR 1100, 1200, 1400 - 5151515151SOLUTION SYSTEMSOLUTION SYSTEMSOLUTION SYSTEMSOLUTION SYSTEMSOLUTION SYSTEMTROUBLESHOOTING GUIDETROUBLESHOOTING GUIDETROUBLESHOOTING GUIDETROUBLESHOOTING GUIDETROUBLESHOOTING GUIDEPossible SymptomPossible SymptomPossible SymptomPossible SymptomPossible Symptom11111 Solution solenoid valve does not operateElectricalElectricalElectricalElectricalElectricalNote: Do all testing with the key switch turned ON, solution switch button depressed, scrub system activated and the drive pedalmoved into the FORWARD direction.Solution solenoid valve doesnot workPress the solution button on theoperator A2 panel. Is the greenindicator light on?Substitute a new A2display panel. Does thesolution solenoid operate?Check for 12V at the L16 sole-noid coil, wire colors (+) ORG& (-) YEL/GRNRepair or replace wiring tothe solenoid valve.Does the solution solenoidoperate?Check the L16 solenoid coilresistance it should read7-9 Ohms.Replace the L16 coil as it testseither open or shorted.YesYesYesNoNoNoPress the solution button andcheck on the A1 control boardto see if the green L16 solutionrelay indicator light is on.Replace the A1 control board.Does solution solenoidoperate?NoYesDisassemble and clean thesolution valve body and retest.If it still does not operatereplace with a new L16 solu-tion solenoid valve assemblyNoNoNo