I have a tc49a smoke alarm that chirps constantly and I don't see a battery

Asked by dan Phillips on 09/10/2014 1  Answer

ManualsOnline posted an answer 9 years, 7 months ago

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0 Model TC49A is an AC-only operated unit. It doesn't take a battery. Try removing the cover and vacuuming out the sensor (the round thing with the holes all over it) sometimes dust gets in and triggers the horn
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