I have an intermittent problem with my 12v compressor
rattling. It works fine but all of a sudden will start rattling. This has gone on for 2 years and is worse on a hot day.
I sounds like the pipes rubbing but I have isolated and rubberised where possible.
I am starting to think it is inside the compressor
. If I turn it off for an hour or 2 it runs ok again for a while.
Appreciate any ideas.