Is your Trane furnace acting up? The control board might be the culprit. This is a used Trane furnace control board, model CNT05135, also bearing part number D674713P01. The seller guarantees it is WORKING - it was tested before removal from a fully-functioning system. That's a key point for used electronics. The brand is Trane. Type is furnace control board. It's compatible with models using the CNT05135 or D674713P01 part number. MPN is CNT05135. Buying a tested, used control board is a smart way to save hundreds over a brand new one from the manufacturer. These boards manage the ignition sequence, fan control, and safety checks in your furnace. If yours is fried, replacing it can bring your heat back. Installation should be done by a qualified HVAC technician, as it involves working with high voltage and gas systems. Make sure to take a picture of all the wire connections on your old board before removing it! This board could be the fix for issues like no heat, blower not running, or error codes. A reliable, budget-friendly repair part for a common failure.