USA Supply ahs one of the largest circuit board inventories in the country. We stock control circuit boards for air conditioners, furnaces, boilers, rooftop units, water heaters and many other controls in the HVAC-R industry. You will be pleased to know that we also repair circuit boards. Give us a call with your circuit board part number and the make and model application and we will be happy to give you a qoute. Check out some of our circuit board deals we have listed. Please bear with us while we build our site. We currently have over 1000 different circuit boards in stock. Our boards are furnace circuit boards for Rheem, Lennox, ICP, York,Goodman, Rudd, Heil, Lexaire, Carrier, GE, Nordyne. We also carry refurbished boards and as always come with a 100% money back gaurantee. We are adding circuit control boards daily if you do not see what you need give us a call or email us with your make and model. Our prices will not be beat!

 Here are just a few of the closeout specials while supplies last.