– Vacuum cleaners– Wireless doorbells that use the power line– Wireless intercoms in transmit (talk) modeIf the COM port tests correctly and you can not control any modules,unplug the Serial Interface module from the wall outlet and try runningthe Home Director program again. Be aware that voltage distribution in homes is split from the 220 voltpower input line. There are two separate 110 volt power lines used inthe house. When a signal is sent to a device module, the signal couldtravel from one 110 volt line, out to the power transformer, then back tothe other 110 volt line. If this distance is too long, you might experienceintermittent problems. Try plugging the device module in another outletsocket in the same room. If you suspect a software problem, exit all other software programs andtry running the Home Director program again. Conflicts may existbetween Home Director and another program. Start the other programsone at a time to determine which program is causing the conflict. If you need to reinstall the Home Director software, first backup all the.HOM files.Repair Information 4-21