Review of Maxxair RV Vent and Fan Parts - Replacement Lift Motor - MA10-20270 Video

While I don't have direct instructions about replacing the Lift Motor #MA10-20270, I can tell you how to gain access to the lift motor. You want to start by removing the screen on your MaxxFan. This is done by rotating the 4 locking tabs…

The two most likely causes of a MaxxAir vent fan lid not opening or closing are either going to be a lift motor or operator failure. I recommend removing the motor and applying power directly to this to see if the shaft turns. If not, you know the…

My contact at MaxxAir advised that there are three potential causes for the beep and no fan motion you're experiencing with your MaxxFan Trailer Roof Vent #MA00-04000K. One potential cause is that the unit was wired with incorrect polarity. Make…

I checked with the manufacturer and the tiny screw you're seeing is a set screw. You will use an Allen wrench/key to remove this. I'm attaching a picture with a set of installation instructions for you to refer to when you're replacing…

I reached out to MaxxAir as I was stumped since you had replaced both the parts already. Their tech said you will want to first check the voltage going into and coming out of the Circuit Board #MA10A21275K with a Meter #PT29ZR where the lift motor…

To remove the hinge pin you'll need to remove the Phillips screw from each side of the cover. Then the lift arm supports can be disconnected from the lid, and the new lid can be put in place. You just want to make sure to replace all the hardware…

As a first step, disconnect power to the fan for a few minutes, then reconnect power to reset the circuit board #MA10A21275K. If the fan fails again it could be the circuit board. Your rain sensor could incorrectly think rain is present on the rain…

It just needs a bit of force like you mentioned. There isn't anything else that holds the #MA10-20270 to the assembly.

The correct replacement lift motor for a Maxxair Vent Fan 4751KS is the Replacement Lift Motor for Maxx Fan Plus Roof Vent part #MA10-20270.

I think you may have missed a screw as there are 3 screws which hold the Lift Motor #MA10-20270 in place on your MaxxAir MaxxFan. With all 3 screws removed the motor should fall out fairly easily. Be sure you are removing the mounting screws and not…

If the lid won't open then that usually means either the motor or operator mechanism is bad. That said, if the manual knob is difficult to turn then that points to a bad operator mechanism instead of a motor and in which case you'd need the…

I sent all of your info and pictures to MaxxAir to find out what circuit board you'd need and they told me the board you need is the part #MA10A21275K.