Review of Maxxair Rain Sensor Replacement - MA34FR Video

Yes when your red light is on your rain sensor is turned off. I reached out to my contact at MAXXAir and we were able to determine the most likely cause of this issue is a faulty rain sensor. We have that available for order on our website as part…

The rain sensor itself on the MaxxFan Plus Roof Vent #MA00-04500K that you referenced is located at the far right corner away from the lid assembly on the fan. I have attached an image pointing out the sensor that you can check out as well. When…

The MaxxFan Plus Roof Vent w/ 12V Fan, Thermostat, and Remote - Powered Lift - 10 Speed - Smoke #MA00-04500K is the similar fan to the 4951ksc. The issue you are having with the fan and lid are likely the circuit board which can be replaced with…

It looks like you have the MaxxAir MaxxFan Plus Roof Vent w/ 12V Fan - Powered Lift - 4 Speed - White #MA00-04751KSX. The unit sounds like it is malfunctioning and this could be due to the rain sensor #MA34FR. It sounds to me like the sensor is…

We do have the Replacement Control Module for Kwikee Electric RV Steps #LC34AF. This is our part number for the Lippert 776367.

Yes you are correct the Replacement MaxxFan Plus 4-Speed Roof Vent with White Lid #MA00-04751KSX is the right replacement and measures 18 1/8" long and 16 1/2" wide, which is the same measurements as your current MaxxFan Plus Roof Vent w/…

There really isn't any troubleshooting that you can do with a MaxxAir Rain Sensor besides just making sure the vent has a full 12v of power and that the rain sensor cable isn't damaged and is fully plugged in. If it isn't working properly…

It sounds like you have the MaxxAir MaxxFan RV Vent with rain sensor #MA00-04500K. This sensor consists of a small circuit board, which is shown in the linked photo. This could have failed, perhaps from damage from an impact from a tree branch or…

This sounds like a problem with the circuit board more than a rain sensor. I recommend, if you have not already, removing the vent from all power for 1-15 minutes. Let it have a hard reset, use this time to give it a good cleaning if needed. Wipe off…

The correct rain sensor for your MaxxFan roof vent is the part #MA34FR. The install and removal is pretty simple. You'll pry up on the old one and then trace the wiring harness back to where it plugs in to remove it. Then to install the new one…

The correct circuit board for your MaxxAir MaxxFan 4951KS fan is the Replacement Printed Circuit Board for MaxxAir MaxxFan Plus Roof Vents #MA10A04751KS. It also works with The MaxxAir MaxxFan 4751KS and 4761KS models as well.

Most likely the circuit board on your MaxxAir MaxxFan 4951KS is malfunctioning and can be replaced with the Replacement Printed Circuit Board for MaxxAir MaxxFan Plus Roof Vents #MA10A04751KS. Since you said it was having issues manually opening as…