Replacement PCB 00-07000K, 00-07500K, 00-08000K, 00-08500K, 00-08700K, 00-08900K, 00-07001K, 00-07501K Fits for MaxxFan MaxxAir Deluxe RV Vent – 12V Roof Fan Controller Circuit Board

This high-quality aftermarket replacement circuit board is designed compatible with MaxxAir MaxxFan Deluxe and Plus 12V RV roof vents, For models like 7000K, 7500K, 8000K, 8500K, 8700K, 8900K, 4500K–4900K, and their "1K" variants. It replaces control boards such as 10C21275K restoring full fan, lid lift, and remote-control functionality. The plug-and-play design allows quick DIY installation with no modifications, and the remote-ready board operates reliably on 12V DC RV systems—even up to 13.6V. Engineered with rugged components for RV conditions, this board offers a cost-effective, durable alternative to full vent replacement.

• Wide Model Compatibility: Works with a broad range of MaxxFan/MaxxAir 12V roof vents (Deluxe and Plus series). Fits Deluxe models 7000K, 7500K, 8000K, 8500K, 8700K, 8900K and their “1K” variants (7001K, 7501K, 8001K, 8501K), as well as Plus models 4500K, 4700K, 4800K, 4900K (plus 4501K, 4541K, 4801K)
• Direct replacement for OEM control board 10-21275K-V3.9, 10-21275K-V3.8, 10-21275K, 10-21275KE / 10A21275K, 10B21275K, 10C21275K, 10A21275KZ, 10B21275KZ, 10C21275KZ for all vents manufactured after 2010. Remote Control & 12V Operation: Supports keypad (manual) and wireless remote control inputs compatible with MaxxAir/MaxxFan vents. Designed for standard RV 12V DC power supply and can handle typical battery voltages (up to approximately 13.6V)performance.
• Works reliably on lithium 12V systems as reported by users，Full speed/fan direction control remains smooth under RV power variations.Easy Plug-and-Play Installation: Direct-fit design plugs into the factory connector block – no cutting or splicing required Simply remove power, open the vent lid, swap the old PCB for the new board, and reconnect the wires. The included board slots into the original mounting location, making replacement fast and straightforward (users describe it as “just plug and play”)
• Rugged RV-Grade Circuit: Built to withstand tough mobile conditions. The board uses upgraded components (better resistors and regulators) for improved voltage and current handling Its heavy-duty construction tolerates the heat, vibration, and humidity found in RV use, ensuring consistent fan performance without premature failure. (Many users add a simple 12V regulator for solar setups to protect the fan, but even at 13.6 V this board remains stable.)
• High-Quality Aftermarket Value: A premium aftermarket replacement that restores full vent functionality. Engineered to meet or exceed the original specs, it comes at a fraction of the cost of a new vent. Customers note it’s much cheaper to replace the board than the entire unit, making this a smart value upgrade for your RV ventilation.