LP alarm started beeping recently. I initially thought we had a gas leak but also realized that our house & chassis batteries could be shot. I replaced all of the batteries today as they were 4 years old. Hooked everything back up but the alarm started sounding off loudly. As I went to disconnect the house batteries I noticed that one of the positive battery cables was noticeably warm. Can anyone help me with this issue? We’re new to this 2003 Fleetwood Tioga.