5 - 20 DPL-25S • DPL-30S • DPL-35S Super Series Part No. 40462September 2016Section 5 - Troubleshooting Flow ChartsChart 8Machine WillNot Lower -Up FunctionOperatesWhile pushing in thecontrol activate switchand activating the downfunction, hold bothswitches and check forpower at the N.C. downvalve coils at the barrelend of the liftingcylinders. Put Pos. leadof the voltage meter onthe yellow wire and Neg.lead on the green/yellowgrounding wire.12V DC0V DCCheck the resistance ofthe N.C. down valvecoils.Repeat the test butrelocate the Neg. lead ofthe voltage meter at theground terminal 10(green/yellow wire) of the13 pole terminal strip (J1)in the ground control box.12V DCCheck for a looseconnection at thegrounding stud in theground control box ORcheck for a bad pinconnection at the quickdisconnect under thebase control box ORreplace 18/7 cablebecause of an opencircuit in the green/yellowgrounding wire.7 ohmsinfiniteohmsPull the manual loweringlever (red handle) locatedon the base.Replace the coil becauseof an open circuit.platformlowers One or both of the N.C.down valves aredamaged or possiblycontaminated. ConsultGenie Industries ServiceDepartment.platform will not lowerOne or both flow controlvalves at the barrel endof the lifting cylinders arepossibly contaminated.Consult Genie IndustriesService Department.Check the voltage atterminal 3 on the downN.O. contact blocklocated in the platformcontrol box.12V DC0V DC Replace the red jumperwire because of an opencircuit.Continued on the nextpage.0V DC
