We had a Goodman furnace and air installed in Dec. 2021, the heating is great, however the air when we turned it on in the summer was horrid. The unit outside vibrated so bad you couldn't even put a h

quoted, in writing, a ducane 2stage counter flow furnace. when I got the warranty paperwork,the model number was for a 1 stage furnace. first Scott told me the supplier gave them the wrong furnace. wh