Nice used control circuit board removed from a building HVAC controller. These were working when removed due to the building being demolished. I have a ton of HVAC controls parts in my other listings in the HVAC category. Any questions feel free to ask! I will identify all electronic components prior to shipment and photo for reference in event of a return, to make sure the return is the same as the one I sent. This item will be pictured with the shipping label as a reference point. If you are not okay with this process and intend to return your faulty part, please do not buy here.  Thanks for looking!