Four beeps and a pause means CO is present. Here are 6 other things that might make your CO alarm go off too. Some or all of the mortgage lenders featured on our site are advertising partners of ...

First, make sure there's no fire. Some or all of the mortgage lenders featured on our site are advertising partners of NerdWallet, but this does not influence our evaluations, lender star ratings or ...

We’ve all been there. It’s 2 a.m. and you hear an eardrum-piercing beep. Your first reaction is to cover your head with a pillow and pretend it never happened. Eventually the slow chirping takes ...

An ear-splitting smoke alarm siren is one of the worst midnight surprises. But it's even worse when your detector keeps beeping in the middle of the night but then stops and acts perfectly normal ...