Ring doorbell 3 plus. Partially rings on its own

Hello, I’ve had my ring pro 3 plus for almost 2 years. It’s hardwired to the houses old doorbell and we have the wireless chime. A few months ago it started ringing the house doorbell by itself at random, but a lighter / partial ring. Nothing shows up in the app. If I remove the battery for a day and plug it back in, it works fine for a few weeks and then starts partially ringing again. Like once every couple minutes. I don’t think the wireless chime ever goes off, just the houses old doorbell. With the battery out, it never goes off on its own, so It’s not a short. Any ideas? Thank you