GCL-GCXThe operators include a self-diagnostic circuit board using troubleshooting LEDindicators to signal the technician of a problem.LED Indicators Fig. 6TROUBLESHOOTING LEDsS YS YS B S BS S BS BE AB+ 24VACEXTNTLKHO STNTLKCALRUN SETCLRSCROLLSCROLLFigure 6+ 24 VOLTSDCSTBENABLE1. CHECK AC POWER SUPPLY8.4STB ENABLED STB DISABLEDPOWER AVAILABLEEXTINTLKHOISTINTLK1. INTLK SWITCH OPENINTLK ENABLED 1. INTLK SWITCH OPEN2. CHECK POWER SUPPLY3. CHECK MAIN POWER FUSE4. CHECK SECONDARY FUSE (2A)INTLK ENABLED2. HOIST RELEASE NEEDS RESET3. INTLK CONNECTOR NOT PLUGGED IN4. INTERLOCK DEFECTIVELED ON OFF2. CHECK FUSESwww.geniecompany.com 08-12Counter Door Operator