Part No. 48412 Genie S-60 & Genie S-65 5 - 33Service Manual - Second Edition Section 5 - Troubleshooting Flow ChartsBoom DownFunctionInoperativeBe sure all otherfunctions operatenormally.Chart 15With key switch inground position andboth Emergency Stopbuttons pulled out to theON position, move thefunction enable switch toeither side and hold theboom down toggleswitch (TS17) on groundpanel in down directionand check voltage onred/wht wire on boomup/down proportionalvalve coil (item O).0V20V or moreMove the functionenable switch to eitherside and hold the boomdown toggle switch(TS17) on ground panelin the down directionand check voltage atTB3.6 to 7VRepair open in red/whtwire circuit from TB3 toboom up/downproportional valve coil(item O) OR repair openin brown ground wirecircuit to valve coil.0VWith the keyswitch inthe platform position andboth Emergency Stopbuttons pulled out to theON position, activatefootswitch and boomfunction controller (BP1)on platform controlpanel in down directionand check voltage atTP3.Continued on the nextpage.6 to 7V Repair open in red/whtwire from TP3 to TB3.0VActivate footswitch andcheck voltage at "+"terminal on BP1.12V or more0V Repair open in powersupply circuit from TP24to BP1 OR repair openin brown ground wirecircuit from ground toBP1.Re-adjust controller (seeRepair Section) ORreplace controller BP1OR consult GenieIndustries ServiceDepartment.800-610-4101ActionRental.com