This is Carrier Bryant CES0110057-01 Furnace Control Circuit Board 784-83-7B or 784-83-7A used  part. 

This part was removed by HVAC installer from a fully functioning system. Old system was replaced with newer one (more energy efficient) and was in good working condition. This part was inspected by professional HVAC technician. 

We have more than one item for this listing, so we won't send you the item pictured, but one we have available now with same part numbers.

 Please note that some discoloration is typical of this board, even in its used functional condition. Most of this type used control boards have some signs of previous wear.

 We carefully check all our items before adding to listing and burned (cooked) items are not allowed.

I am offering a FREE standard mail delivery and 30 days FREE returns. 

We offer only one business day handling and always ship out next business day. 

Purchasing used parts you agree with the statement that sometimes hidden defects or malfunctions may occur during installation or continuous use. There is no warranty on used parts. But you have 30 days satisfaction guarantee and 30 days FREE returns!