If you are unable to load or print your return shipping label from any device, ensure your email and browser applications are up to date and try accessing the label link directly. If issues persist, contact customer support for an alternative label delivery method. Regarding the circuit board for your RV fireplace model FF40SW15A-BL (Wood Platform/Simulated Log version), the correct replacement board differs from the one sent, which was for the Crystal model. To find the right board, identify the appliance type and brand, locate the model and serial number on the appliance, and check the part number printed on your existing board if possible. Providing these details will help locate the exact compatible board. Some manufacturers have updated legacy boards, so ensure you request the updated version for the SW (Log) series. If needed, universal replacement boards may be an option. Contact Elkhart RV Parts with your appliance type, brand, model number, and part number to get expert assistance in finding the correct circuit board and to receive a prepaid return label for the incorrect part.