Part No. 39528 Genie GS-1530 & Genie GS-1930 5 - 29Service Manual - First Edition Section 5 - Troubleshooting Flow ChartsChart 12Drive ReverseFunctionInoperativeBe sure all otherfunctions operatenormally.Be sure the circuitbreaker and fuse arenot tripped or blown.Be sure the batteriesare properly connected.Be sure the batteriesare fully charged.With the key switch inplatform position and theEmergency Stop buttonspulled out to the ONposition at both theground and platformcontrols, activate thedrive controller in thereverse direction andcheck to see if the errorindicator light at theplatform controls is on.light isonlight is notonConnect the positivelead from a volt meter tothe drive reversedirectional valve coil(item J) wire terminalwithout disconnectingthe wire, and thenegative lead of the voltmeter to the brownground wire on thefunction manifold.Activate drive in thereverse direction andcheck the voltage.Disconnect the wiresfrom the drive reversedirectional valve coil(item J) and check theresistance. See RepairSection.0VRepair open in the whtwire from the drivereverse directional valvecoil (A7-reverse coil) tothe ECM OR repairopen in the brownground wire circuit fromthe manifold to thebattery module tray ORreplace the ECM ORconsult the GenieIndustries ServiceDepartment.24V0 orinfiniteohms18 to 20ohmsReplace the drivereverse directional valvecoil (item J).Repair or replace thedrive reverse directionalvalve (item J) ORconsult the GenieIndustries ServiceDepartment.Replace the driveforward/reverse valvecartridge (item J) ORconsult the GenieIndustries ServiceDepartment.
