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Question About First Alert Smoke Alarm 9120B
Opening battery door to BRK First Alert, model no 9120B...

the battery door does not open wide enough to replace the battery. what am i doing wrong

Asked by Andy Tarquinio on 06/09/2010 2  Answers

ManualsOnline posted an answer 14 years, 5 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

Greg posted an answer 14 years, 4 months ago

0 Did you remove the locking pin on the back first?
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