8.4These operators include a self-diagnostic circuit board usingtroubleshooting LED indicators to signal the technician ofa problem.LED Indicators Fig. 6Figure 6HOISTINTERLOCKTROUBLESHOOTING LED’sEXTERNALINTERLOCK + 24 VOLTSDC STBENABLE INDICATIONOFFOFFOFF OFFOFF OFF OFFONON ON ONON ONONNORMAL OPERATING CONDITIONSTB DISABLEDSTB ENABLEDHOIST INTERLOCK SWITCH OPEN:1) HOIST RELEASE NEEDS RESET.2) HOIST INTERLOCK CONNECTOR NOT PLUGGED IN.3) HOIST INTERLOCK DEFECTIVE.POWER SUPPLY PROBLEM:1) CHECK AC POWER SUPPLY.2) CHECK MAIN POWER FUSE.3) CHECK SECONDARY FUSE (2A).EXTERNAL INTERLOCK OPENS BE AB+ 24V CE TI T KHO TI T KSTBENAB+ 24VACEXTINTLKHOISTINTLKTROUBLESHOOTINGLED SDETAILwww.geniecompany.com 08-12Medium Duty OperatorGCL-MJ&MH