I just wrapped up a quality assurance site inspection where I heard something unusual. The homeowner had a new furnace & central air conditioning system installed in November. Since then he's been hearing a lot of interference on his AM radios in the house and his hunch is that it is somehow related to the installation of the furnace. I'm not well versed in radio frequency transmission, so I didn't have any clue about what could be causing this phenomenon.
Has anybody else come across this issue with new furnace installations?