I bought a used 44" toro wb this winter and have put 25 hours on it. It is running great and only has 396 hours. The hour meter starting flashing today and it says svc under the hours. I am assuming that I need to take it in and get it looked at, but was wondering if it could be a routine maintenance reminder or something I could take care of. The owners manual doesn't address this issue. thanks in advance for any help.