| Do healthy smoke detectors ever false alarm? I have a GE 429CT smoke/heat detector that recently had a false alarm. No burning toast, etc. to explain it. Seems to me this shouldn't happen in an alarm-system-type smoke detector (what with the fire department being called and all). My system is under warranty but the company is giving me a hard time because the smoke detector passes its self-diagnostics. Am I correct in thinking that false alarms are not normal and the detector should be replaced? |