The replacement electronic board you ordered may not be fully compatible with your RV electric fireplace model W914-36FT, especially if the plug connections differ. Typically, swapping plugs is not recommended without manufacturer guidance due to electrical safety and functionality concerns. The best course is to contact the manufacturer to confirm compatibility or modification options. Alternatively, you can exchange the board for the correct replacement part matched to your specific model. For example, the Covenant Fireplace Replacement Electronic Control Board for touchscreen models is often recommended for certain RV fireplaces. If the fireplace continues to malfunction, such as not turning off, replacing the entire heater may be necessary. We recommend verifying your model number and using authorized parts to ensure proper operation and safety.