I have a BRK smoke alarm model number 4120SB. I have replaced the battery and it is still chirpping. What else do I need to do to keep it from chirpping?

Asked by Roni on 06/02/2009 2  Answers

ManualsOnline posted an answer 15 years, 6 months ago

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0 there are some problems with these units if different batteries are used due to a size issue. They sent notifications to those registered that non everready batteries were causing problems due to very small size issue. Call compnay BRK for replacement
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