So your home’s old doorbell never worked, or you’d like to put a video doorbell on an entrance that was never wired for a doorbell. Here’s what you need to know about using a video doorbell without existing wiring….

You installed a new video doorbell, and it won’t charge, complains about low voltage, or dings but doesn’t dong. There’s a good chance your home’s old transformer is to blame. Here’s what you need to know (and what to do abou…