The Covenant Replacement Electronic Control Board (SKU: LFP-PCBOARD) is designed for RV electric fireplaces with physical button models. It's important to ensure the replacement board matches the original's voltage and connection type to function properly. Since your new board's voltage differs from the original, causing a connection issue, you can request a return and replacement with the correct part. Before proceeding, identify which function the mismatched connection affects (such as on/off, flame and heat element, LED lights, or LCD display) to confirm compatibility. You may also review the troubleshooting guide available on our product page for additional support. Once confirmed, provide the SKU of the desired replacement part to facilitate the exchange. For returns and replacement processing, please contact customer service directly through Elkhart RV Parts to arrange shipping and ensure you receive the correct control board matching your fireplace model.