Replacement Operator Mechanism for MaxxAir MaxxFan  

Yes the operator replacement part #MA10-20281K-1AF that you referenced will work as a replacement for your Maxxfan #2015-04-4951KS-A02946.

I have an answer for you. While we cannot guarentee the issue, one of the most common issues with your MaxxAir model 4751 ks is that even if it sounds like the operating mechanism is working, it is skipping a gear on the operating mechanism. The way…

When a trailer roof vent is having trouble closing this points to a faulty operator mechanism. The correct replacement for a MaxxAir 7500K Roof Vent is the Replacement Operator Mechanism for MaxxAir MaxxFan Plus or MaxxFan Deluxe Roof Vents part…

Since you've already changed the motor and your vent lid still won't lift, it sounds like the issue is the operator mechanism. You can replace that with the Replacement Operator Mechanism for MaxxAir MaxxFan Plus or MaxxFan Deluxe Roof Vents…

I had one of the Replacement Operator Mechanism for MaxxAir MaxxFan Plus or MaxxFan Deluxe Roof Vents #MA10-20281K-1AF opened, and the internal gear does have teeth. I included a picture of one of these opened up for you to check out as well.

The hole on the Replacement Operator Mechanism for MaxxAir MaxxFan Plus or MaxxFan Deluxe Roof Vents #MA10-20281K-1AF that you marked can be used. That hole is designed to be used as a mounting point, if your fan requires an "L" bracket for…

I've attached an exploded diagram photo of the vent assembly that uses the Replacement Operator Mechanism for MaxxAir MaxxFan Plus or MaxxFan Deluxe Roof Vents #MA10-20281K-1AF for you to check out. You'll need to use it as a guide for…

Sounds like you have a damaged or worn out roof vent operator and need to replace it with the part #MA10-20281K-1AF since you said the motor doesn't want to fully open or close the lid and it's difficult to turn by hand.

Yes the operator replacement part #MA10-20281K-1AF that you referenced will work as a replacement for your Maxxfan #4951ks.

Yes. Your serial number indicates that you've got a 4500K series Maxx Fan, so you can use the Replacement Operator Mechanism for MaxxAir MaxxFan Plus or MaxxFan Deluxe Roof Vents #MA10-20281K-1AF to replace your operator mechanism.

I spoke with the manufacturer and based on your issue the gears are most likely stripped out and can't sense that its reached the end so you'll need the Replacement Lift Motor for Maxx Fan Plus Roof Vent #MA10-20270. If this doesn't solve…

I have a solution that I think would work well for you but all of the roof vents we offer for RVs do use either remotes or controllers on the assembly itself. The MaxxFan Plus Roof Vent #MA00-04500K though comes with a wall mount for the remote…