I also in the power of prayer and laying hands on the sick.
James 5:14-15 "Is any sick among you? let him call for the elders of the church; and let them pray over him, anointing him with oil in the name of the Lord: And the prayer of faith shall save the sick, and the Lord shall raise him up; and if he have committed sins, they shall be forgiven him."
I'm not sure if this applies to inanimate object, but God has provided me some very unusual solutions to problems. One of the strangest fixes that he provided me was a repair of a critical electrical system that would shut down after a few minutes. About five minutes into the job, I had an overwhelming urge to weld a post between the floor and the ceiling at a spot unrelated to the system. Everyone, including myself, thought I was crazy, but I did it. The system never shut down again. Read my first post for my secret of success.
Was it casting out demons or demon possession? I doubt it. Can I cast them out? Yes. Read Philippians 4:13.