By Homer Davidson
* the final word troubleshooting and service reference for pro technicians and hobbyists makes a speciality of the most well-liked buyer digital units * All significant buyer electronics troubleshooting techniques--for the 1st time at any place! * hundreds and hundreds of illustrations clarifying potent troubleshooting and service tools * entire, updated troubleshooting and service insurance of good- country TVs, audio/video cassette gamers, CD avid gamers, camcorders, and extra
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Never remove a battery from your smoke alarm for use in another item, such as a radio, toy, or TV remote – it’s too easy to forget to replace it! While you’re up checking your battery every month, also brush or vacuum the alarm to keep dirt and dust out of the mechanism. Never use cleaning sprays or solvents that can enter the unit and contaminate sensors. Replacing alarms and detectors After a period of ten years, a smoke detector has endured more than 87,000 hours of continuous operation, during which time the internal sensors have probably become contaminated with dust, dirt, and air pollutant residues.
This includes ashes from ashtrays, fireplaces, and barbeques. Hot embers can smoulder undetected in the bin for hours before igniting. ✓ Keep heaters at least a metre (3 feet) away from flammable items. Only buy portable units with tip-over shut-off switches and never have a heater on while you’re asleep. Smoke alarms: Gotta have ’em A smoke alarm is considered to be one of the least expensive and best forms of life protection insurance you can buy. A working smoke detector doubles your chance of surviving a fire by warning you of a dangerous situation before it’s too late.
25 Book I Planning Your Home Improvement Projects Most systems have a keypad for indicating system operation and points of intrusion, and a horn or siren installed indoors (in the loft) or outside under an overhang or eave. Follow the manufacturer’s instructions for maintaining and checking these features at specified intervals – pay particular attention to all points that signal an intrusion when contact is broken. Make sure that sensitivity levels are properly set to avoid both frequent false alarms (that eventually go unheeded) and a system that doesn’t respond properly when it should.