My house was built in the 1890s, but was almost totally gutted and rewired, etc. There are a few parts of the house that were not gutted and this may be where my problem begins.
I noticed this morning a loud rhythmic tapping/ticking sound from behind the wall in my livingroom. It is an interior wall and the sound was about 4 feet up the wall. I could also feel the tapping. I hit the wall to see if it was an animal or something, but it continued. There are no water pipes in that area.
For some added info: I noticed at the time that my washer was in the spin cycle in a different room (20 feet away). I unplugged everything in the outlet closest to the tapping and it did not stop immediately, but probably a minute later, which was also at the same time the washer completed its cycle. I re-plugged everything back into the outlet, no tapping. I ran the washer again, no tapping. It was about 4 hours ago and nothing since.
Any thoughts? Does this sound like a wire arcing or some electrical issue?