MaxxFan Plus Roof Vent w/ 12V Fan and Thermostat - Manual Lift - 10 Speed - White

Item # MA00-04000K

(469 Reviews)

Retail:$329.95

Our Price: $222.53

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with 12v fan reversible maxxfan plus roof vent w/ and thermostat - manual lift 10 speed white

roof vent maxxfan plus w/ 12v fan and thermostat - manual lift 10 speed white

vent with 12v fan reversible ma00-04000k

roof vent with 12v fan reversible maxxfan plus w/ and thermostat - manual lift 10 speed white

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MaxxAir RV Vents and Fans - Roof Vent - MA00-04000K Review

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Is this right For you? Product Expert Kathleen M says:

Yes, if you:

Travel with pets and want to make sure the fan will turn on when it gets to the thermostat setting to keep the air moving
Prefer having greater adjustability with the fan speed so it can be at a whisper-quiet low or tornado high
Want a reversible fan that can also pull in fresh air so you don’t need to run your AC on nice days

No, if you:

Leave the vent open during rainstorms and don't want to worry about causing damage
Have a hard time reaching up to the ceiling to adjust the fan or open the vent
Prefer to buy American

This manual-lift roof vent has a reversible, 10-speed fan and a thermostat to regulate airflow inside your RV, camper, or trailer. Ceiling fan mode circulates air when vent is closed. Removable bug screen keeps insects out. Lowest Prices for the best rv vents and fans from MAXXAIR. MaxxFan Plus Roof Vent w/ 12V Fan and Thermostat - Manual Lift - 10 Speed - White part number MA00-04000K can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.

MAXXAIR RV Vents and Fans - MA00-04000K

Features:

Roof vent with fan and thermostat moves air in and out of your RV, camper, or enclosed trailer
- Vent allows air to circulate while your RV remains locked and secure
12V DC, variable-speed fan has 2 modes of operation
- In manual mode, 10 speed options let you increase or reduce airflow
- In auto mode, fan turns on and off based on preset temperature of thermostat
Reversible fan can either bring air in or exhaust air out
- Circulates air like a ceiling fan when the vent is closed
Flush-mounted keypad on vent allows you to set the thermostat and the fan speed and direction
White-colored dome (or lid) is made of high-density polypropylene
- Seamless, low-profile appearance when closed
Manual lift design has 2 arms to support the dome and keep it open
- Manual knob lets you operate dome
Bug screen keeps insects out and is easy to remove for cleaning or maintenance
Fuse-protected, ball bearing motor is sealed to keep out dust, dirt, and moisture
Rubber weather seal helps prevent leaks when vent is closed
Molded-in mounting flange is constructed of UV-resistant ABS plastic
- Smooth edges won't cut you during installation
Mounting tabs on flange allow for no-drill, tool-free installation of FanMate vent cover (sold separately)
White interior trim piece (or garnish), insulated electrical connectors, and hardware are included for installation
- Roof sealant sold separately
2-Wire design
- Black wire is power
- White wire is ground

Specs:

Fits: roofs 2" - 6-1/2" thick
- Opening size: 14" wide x 14" long
Overall dimensions (outside of flange to outside of flange): 18-1/8" long x 16-1/2" wide
- Garnish dimensions: 16-1/4" long x 16-1/2" wide
Vent extends above roof:
- When closed: 3-3/4"
- When open: 11-7/8"
Overall fan diameter: 12"
Fan capacity: 900 CFM
Quantity of fan blades: 10
Power draw: 5 amps
Warranty:
- 2-Year limited on vent assembly
- Limited lifetime on dome

Note: Not for use above tubs, showers, or range cooking surfaces.

Reversible, Variable-Speed Fan with Thermostat

The 12-volt, variable-speed fan has 2 modes of operation: manual and auto. When the fan is in manual mode, you can choose from 10 different speeds to increase or reduce the airflow as needed. Auto mode works in conjunction with the fan's thermostat.

To enter auto mode, press the auto mode button on either the remote control or keypad. Once the fan is in auto mode, the thermostat is activated with a set temperature of 78 degrees F. Pressing the arrow keys on either the remote or keypad changes the set temperature in 1 degree increments. When the thermostat is set, it senses the room temperature and automatically turns the fan on if it is above the set temperature. The fan shuts off when the set temperature has been reached. If the room temperature rises, the fan turns on again. This keeps your RV cool and comfortable and saves you from having to adjust the fan by hand. The auto mode also saves energy by running the fan no more than necessary, especially while you're away or asleep.

This fan is reversible, which means you are able to both exhaust stale air out of your RV and bring fresh air in from the outside. To enter ceiling fan mode, close the vent while the fan is still running. The fan then circulates the air inside your RV like a ceiling fan.

The fan has a fuse-protected, ball bearing motor that is sealed to keep out dust, dirt, and moisture.

Flush-Mounted Keypad

The flush-mounted keypad on the vent enables you to operate the vent and fan, including opening or closing the dome and turning the fan on or off. You can also control the fan speed, the direction of the airflow, and the set temperature for the thermostat.

Manual-Lift Dome with Twin Arms

The dome on this roof vent is constructed of durable high-density polyethylene, and it is translucent so that some natural light can shine through. When it's closed, the dome provides a seamless, low-profile appearance that blends into the roof of your RV.

Unlike a dome that has only 1 arm, this manual-lift dome is supported by 2 sturdy arms so that it will not flutter during high winds or while you are driving.

And a manual hand knob is built into the underside of the vent to allow you to open and close the dome. Pull the knob outward, turn it to where you want it, and push it in to lock the dome into place.

Removable Bug Screen

This vent has a bug screen that helps keep insects and debris out of your RV. It is secured to the vent with 4 built-in retainer clips. These clips make it easy to remove the screen for cleaning or maintenance. Just rotate the clips, and the screen will pop out.

Installation

The MaxxFan Plus vent fits standard 14" x 14" openings in the roof of an RV, camper, or enclosed trailer. A white interior trim piece (or garnish), insulated electrical connectors, and hardware are included for installation. The vent also has a molded-in mounting flange that is lined with a rubber weather seal, which helps prevent leaks. Roof sealant (sold separately) is required for installation.

To install, connect the two wires on the vent to your RV's electrical system. The black wire is for power, and the white wire is for ground. Then insert the MaxxFan Plus into the opening in the roof and mount the flange to the roof. To finish, trim the garnish as needed to fit the thickness of your roof and install it.

For extra rain protection, install a MaxxAir FanMate vent cover (sold separately) using the molded mounting tabs located on the flange. The tabs are designed to align with the integrated brackets on the FanMate, allowing for a no-drill, tool-free installation. These tabs also have rubber inserts that prevent water from seeping in under the flange.

00-04000K Max Air Max Fan Plus RV and Trailer Roof Vent - White Dome

Replaces MA04000K

Installation Details MA00-04000K Installation instructions

Customer Reviews

MaxxFan Plus Roof Vent w/ 12V Fan and Thermostat - Manual Lift - 10 Speed - White - MA00-04000K

Average Customer Rating: 4.8 out of 5 stars (469 Customer Reviews)

Order: This manual-lift roof vent has a reversible, 10-speed fan and a thermostat to regulate airflow inside your RV, camper, or trailer. Ceiling fan mode circulates air when vent is closed. Removable bug screen keeps insects out.

by: James06/06/2022

Great fan for the price. I used it to covert an older roof vent with no fan. It came with everything needed to install. I was nervous to cut the trim ring but it was easy and you can not see the edge once installed. I wish I would have gotten the remote since the controls set up high due to my roof design, but still easy to use. Fan is quiet to run which is a bonus.

by: Gary05/13/2019 One Year Later

I've had the fan in for a season, and a couple southern road trips. Generally happy.
It will run "all night" with no problems on the stock dual batteries in my Ford Transit passenger van.
Didn't spring for the remote and maybe would the next time. the controls are bit small, hard to reach, a touch confusing for groggy, middle of the night changes.
Fan is quiet and efficient but even on high, directly over the bed, it's not going to bath you with sweat drying air movement. Quality seems good, I installed with an aftermarket, designed for the transit roof profile, ring, it went well. I painted the interior trim with gray "for plastic" rattle can paint to match the Transit ceiling and that is good stuff, it held up well to multiple on offs while getting the install just right". I also brush painted elastomeric white roof coating over the exterior caulk and and mounting screws, zero leaks so far.

Click to Enlarge

by: 04/10/2022

I just finished installing the Maxxfan in my ford van. Aside from cutting the hole in the roof, the whole process was way easier than anticipated. You can apply all the sealant and just drop it right in. Screws depends on what your interior roof looks and thickness. wired it up and its great. I choose not to use the roof vent. I used some custom trim instead.

by: Edward03/01/2022 One Year Later

The MAXXAIR fan is just as described and what I needed.

by: Les 12/02/2019 One Year Later

Works great quiet easy to install
Wish my RV’s had places for more
Like the temp setting and reversibility go to Death Valley a lot energy efficient have solar can Even leave on in storage if not worried about weather
Need to get rain cover than no worries

Comments

One of the best up breads I’ve made quiet efficient reversible and not real difficult for a diy project

Les - 12/03/2020

by: Willie08/30/2017

I had used various AC fans and DC muffin fans to cool my 6 X 12 cargo/camper trailer. What a waste of time and money that was. I had figured that since I had such a small space, I would need less fan to keep it cool. If a 26 foot long 8 feet wide RV needed only one MaxxAir or Fantastic Fan, then a fan with half the power should work with my tiny trailer, right? Wrong! Don't waste your time with cheap fan. Get a real one that will move real air. I absolutely love the thermostat; it works extremely well at keeping the inside at a comfortable temperature. As the day heats up, the fan slowly ramps up- the hotter it get, the faster it spins. If it is only warm, the fan barely turns. Other fans with a thermostat will jam on at high speed, then shut completely off, then jam on again in a jarring, cyclic effort to maintain an even temperature. As the night cools down, my MaxxAir slowly ramps down to an idle so that I can't hear it which is nice when wanting quiet time for sleeping. Some time during the night it shuts off completely. When I sleep in, I'm not awoken by a loud fan kicking in. The thermostat mode is utilized almost exclusively. Whoever included this type of thermostat is a genius. Having the 10 speeds also helps tremendously at keeping a stable temperature and it does so with a quietness that is far and away better than any AC fan. Muffin fans are quiet, too, but they are anemic and won't work against any kind of breeze. The buttons and switches are easy and intuitive. Keep in mind the manual button and the thermostat button are completely separate from each other. Using the manual button will have no effect on the thermostat button and visa versa. Very efficient with electricity while having a ton of power. This is one of the best purchases I have ever made. Describing how well this fan works compared to other fans is hard to put into words. Very high quality and highly recommended. And a huge thumbs-up for etrailer's customer service. The only negative was not having a template. The installation took a lot longer sans template. This wasn't to replace an existing fan. This was a virgin install on a vertical wall with no help from anyone but my dog.

Comments

This fan still remains one of the best purchases Ive made for my trailer. I cant talk highly enough about the quality, ease of use, and effectiveness of this fan.

Willie - 08/30/2018

by: Carl07/22/2018 One Year Later

Great fans. We boondock a lot so don't use the AC much, so two of these give it lots of airflow and keeps us pretty cool in our 21' TT. They have lots of air flow to clear out the heat in just a few minutes. They are totally silent on low and not very loud on high (Some say quieter than the Superfan). When we cook we reverse the flow to blow in and pressurize the odors and smoke out the hood vent and kitchen window. The only recommendation I have is to consider the one with the remote control. My wife is 5'0" and cannot reach the controls to open the vent nor turn it on/off.

Comments

Still great.

Carl - 07/22/2019

by: Stephen 02/01/2022

Just installed it only took about a half hour still got have to put the trim ring on But just giving it a test run.

by: John 10/14/2021

GreT product arrived early etrailer is a very good company

by: Leigh02/28/2021 One Year Later

Works as it should. Just know that the MaxxAir II Vent Cover keeps the lid from closing all the way and making a seal. Allows about 1/2" gap.

by: TimNH09/08/2016

Etrailer shipped,very quickly. While researching which vent/fan I wanted to replace my old unit I used the advice function on the web site. The advice was quick and very useful. I looked at YouTube for installation instructions and was very happy to see the vent/used n the video was this unit. The video also gave me the confidence to do the instillation.
The vent/fan was very easy to instal and works well. It is very quiet compared to the fan that came with my camper. I'm very happy with this vent/fan and etrailer.

Comments

Ive only used the fan three times since I installed it. Im still very happy with the fan.

TimNH - 09/08/2017

by: Robert07/26/2018

This is my second purchase of this fan. The first one went away when I sold my van. My new van will be receiving this one. I was so satisfied with my previous MaxxFan that purchasing a second one was a no-brainer.
Quiet and reliable with a number of useful features. Note the double brackets supporting the top, unlike other competing vents.
This is my third purchase from etrailer. Their prices are great and shipping is fast.

by: James06/27/2018

Awesome! No RV should be without at least 1 of these high flow fans. I have installed 2 different Maxxair models in my Reflection and love them both. I put the remote controlled model in the kitchen/living area where it is too high to reach the controls. Very well made fans.

Comments

These fans are as awesome now as ever!

James - 06/27/2019

by: Brudgers05/23/2020 One Year Later

The best part of the Maxxair MaxxFan Plus Roof Vent w/ 12V Fan and Thermostat Manual Lift 10 Speed was installing it myself. I had climbed to my van to it's perfect white metal roof. Run an extension cord. Plugged in the [hardware brand] jigsaw. Bzzzzz. Four inches of sliced virgin metal. Four inches of hole across the roof. An existential moment. No going back. No trial run. Only forward. Forward like the Merry Prankster's bus.

Only later did I realize the point of no return had long since past. It past when I drilled the pilot holes before making the crooked ragged jigsaw cuts.

Installation was empowering. It took me out of my comfort zone. Cutting a ragged hole in the roof changed the way I think about cars. And it all worked out. Installation was as straight forward as people say it is. The hardest part was my mental resistance to cutting the roof.

The vent doesn't leak. It moves air. It's quiet and does not draw much power. I love that it is reversible. At night, I set it to exhaust so light seeking moths don't die in the spinning blades. They are blown away instead of sucked in.

For the electrical. I fused both positive and negative off the battery. I ran the power wires through flex automotive conduit. I picked up the fusing, wire and flex conduit from my local Walmart after figuring out what I needed. The hard part of that was determining wire gauge based on the total length of the feeds. The length was longer than I would have guessed when I measured it.

And it all worked the first time I pushed the button. Great product. Great experience.

by: Randal07/05/2018

This fan is awesome, it moves a lot of air, installation was simple, replaced a regular gravity vent in my RV, obviously a Hugh improvement.
Shipping was lightening fast from etrailer.com, and was reasonably priced, I would highly recommend them!

by: William 05/26/2020 One Year Later

Item was very easy install aside from removing the old unit and cleaning the site prior to install. New unit did not require any cutting of plastic trim - fit perfectly as-is right out of the box. Used dicor lap sealant and was completed in quick order. We installed this on a 2013 Keystone Cougar bathroom to replace the tiny oem fan.
Later on I did purchase the MaxxAir vent cover that is specific to this product (Fanmate) This took 5 min to install with 4 clips.

by: Roger08/01/2019

Just got it installed, works great! I had to do some modifications to the roof because I didn't pay attention to the 2 inch minimum, overall not a bad install process. etrailer was quick and had excellent service as always.

Comments

We typically dont need AC, so this fan has been a perfect option to get air flow in our truck camper. An added benefit is that we can put up and take down the pop-up without having the door open to bugs or having to manually tap in the canvas. An excellent addition to our rig. Install was pretty easy, the hardest part was getting the electrical service from a light fixture.

Roger - 08/02/2020

by: Bob06/03/2018 One Year Later

Just what I wanted. Put it in the roof vent in the bedroom of my 5th wheel and really helps cool the trailer.

Comments

Excellent addition to help keep the trailer cool.

Bob - 06/03/2019

by: Mark08/29/2019

etrailer is GREAT! Haven't used the product yet but ordering & shipping was fast & efficient!
I would much rather buy from these guys vs. the big "A"

by: Bob H06/03/2020 One Year Later

I needed a power vent for a utility trailer that I was converting to a small camper. The vent was easy to install and make weather tight. It has operated perfectly for a year now. I thought it was a good buy.

by: Charlie 10/03/2021

Fast and easy transaction.

by: Harold 10/13/2021

Great service

by: Kennrth11/21/2019

I have this very fan in my RV and it is beyond amazing! I am doing a rebuild for a friend and we are putting two in. one at the front and one at the back. that way one can push and the other pull and circulate the air even better!

by: Cynthia06/21/2019

We replaced a Fantastic Fan with this Maxxair 4000. It was fairly easy for my husband to install. We like the 10 speed feature.

by: James H12/13/2019 One Year Later

It’s a simple design, but works great. It’s reversible and has lots of speeds. The screen is easily removable for cleaning but locks in place. The lid is manual and the crank takes some getting used to but also locks in place and has been very reliable so far. Overall, for the price, this is a great fan.

469

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Ask the Experts about this MAXXAIR RV Vents and Fans

Do you have a question about this RV Vents and Fan?

Can the Maxxfan MA00-04000K be Used in a Bathroom
I understand your concern. That is a bit confusing. The MaxxFan Plus Roof Vent w/ 12V Fan and Thermostat part # MA00-04000K should not be used inside of an enclosed shower but is perfectly acceptable to use in bathrooms that have showers in them. These are commonly used for this exact application.
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Height of Garnish Included With MaxxAir # MA00-04000K Trailer Roof Vent
The garnish that's included with the MaxxAir # MA00-04000K is 3 inches tall. I've confirmed this with our MaxxAir representative.
view full answer...
How is the Variable Speed Operated on the MaxxAir MaxxFan Trailer Roof Vent # MA00-04000K
The built-in thermostat of the MaxxAir MaxxFan Trailer Roof Vent # MA00-04000K is what determines the speed of the fan. The user doesn't have direct control over the speed of the fan because you would just set the desired temperature and the fan takes care of the rest. I have linked a review video that you can check out as well.
view full answer...
Where Does Power Come From on MaxxFan Roof Vent
A MaxxFan roof vent such as # MA00-04000K comes from the black wire; this vent is a 2-wire design the black wire being the power wire and the white wire being a ground wire. If you undo the black wire this will stop the fan from getting power and the chirping you are experiencing will stop as you wait for a new board.
view full answer...
How Does Screen of MaxxFan Plus Roof Vent Remove for Cleaning
The four tabs that hold the screen of the MaxxFan Plus Roof Vent w/ 12V Fan # MA00-04000K rotate. So what you'd need to do is rotate the tabs and you'd be able to remove the screen.
view full answer...
Required Roof Thickness For MaxxAir MA00-04000K RV Roof Vent Fan
The MaxxAir # MA00-04000K is intended for roofs 2-6 inches thick, so it wouldn't work well right out of the box for you. However, this is an extremely common issue that'e easily overcome by using some lumber to built a frame around the inside of the rough opening to increase the roof thickness. The frame also provides a good solid attachment point for the fan's mounting hardware. If you click the provided link, you can see a product description video featuring this fan.
view full answer...
What Size Opening in Trailer Roof Does MaxxFan Roof Vent # MA00-04000K Fit
The MaxxFan Plus Roof Vent w/ 12V Fan # MA00-04000K and roof vents similar are designed to fit 14.5 inch by 14.5 inch rough cut openings. The lip on the garnish is pretty wide too so you don't have to be super exact with these dimensions so what you'd just need to do is get as close as you can to a 14.5 inch by 14.5 inch square opening.
view full answer...
How Do You Remove The Screen On the MaxxAir MaxxFan?
To remove the screen for the MaxxAir MaxxFan Trailer Roof Vent w/ 12V Fan - Manual Lift - 14-1/4" x 14-1/4" - White, # MA00-04000K, you simply remove it from the 4 mounting tabs. These tabs rotate. I've attached a picture for you.
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Will MaxxAir MaxxFan Trailer Roof Vent # MA00-04000K Fit 1992 Starcraft Meteorite
Nearly every trailer roof has a roof vent opening that matches the MaxxAir MaxxFan Trailer Roof Vent # MA00-04000K. If the hole you have on the roof of your 1992 Starcraft Meteorite is 14 inch by 14 inch this will fit and work well.
view full answer...
How Does Screen of MaxxAir MaxxFan Roof Vent MA00-04000K Come Off
Try pushing up on the screen while turning the tabs and see if that helps. If now then try to use pliers, but make sure you apply just enough force to turn the knobs and not break them. To remove the screen for the MaxxAir MaxxFan Trailer Roof Vent w/ 12V Fan - Manual Lift - 14-1/4" x 14-1/4" - White, # MA00-04000K, you simply remove it from the 4 mounting tabs. These tabs rotate. I've attached a picture for you.
view full answer...
Troubleshootinng MaxxFan Roof Vent that Keeps Beeping
Are you having issues with a MaxxAir MaxxFan roof vent like # MA00-04000K? It could be an internal issue with the fan and it needs to be replaced. Before replacing you can check a couple of things. Is it a new install? If so make sure you have the wiring correct and not reversed. The white wire should be grounded and black to 12 volt power. If the wiring is correct make sure it's getting sufficient power and the connections are good. If both of these check out you likely have a bad...
view full answer...
How to Set a MaxxAir Vent to Blow Opposite Direction
If the vent fan you have now is reversible then there should be a button on the assembly next to the other controls. However, if the fan is not reversible then all you need to do is reverse the wires on the motor (not the circuit board) and that will then allow the fan to blow air into the van.
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Troubleshooting MaxxFan Roof Vent that Doesn't Want to Open
Sounds like there's an issue with the linkage that raises and lowers the lid of the MaxxFan Plus Roof Vent w/ 12V Fan and Thermostat # MA00-04000K. If you can get on top of the 5th wheel I'd see if you can open the lid and check to see if the linkage arm that holds the lid has somehow been damaged.
view full answer...
12 Volt Roof Trailer Vent Recommendation with White Lid
The most similar solution we offer would be the MaxxAir part # MA00-04000K which has a white lid, manual lift, and a 12 volt fan, but we do not have a Fan-Tastic roof vent that has a white lid.
view full answer...
How to Remove Bug Screen From MaxxFan Plus MA00-04000K Roof Vent Fan
The procedure for removing the # MA00-04000K screen is pretty simple. They might be a little hard to see, but the screen is held in by 4 small fingers. To remove the screen, simply rotate them. If they're difficult to turn, push up on the screen frame right next to the finger you're rotating. I've provided a photo that might make this a little clearer for you.
view full answer...
Solution for MaxxAir RV Deluxe Roof Vent that Won't Raise and Lower Manually or Electronically
What you need is a new operator for your MaxxAir Deluxe roof vent as this is the mechanism that raises and lowers the lid. For that you'll need the part # MA10-20281K-1AF.
view full answer...
MaxxAir Fan Beeps, Stops Working
Acccording to MaxxAir, you'll want to remove power from the MaxxAir # MA00-04000K fan for a minute or two, then reconnect to reboot the circuit board. In the vast majority of instances, this will fix the problem. You should also check that the fan is receiving 12 volt power and that the rain sensor isn't wet.
view full answer...
Troubleshooting MaxxFan That Fan Motor is On All the Time Even After Switch Replacement
The switch should be controlling whether the fan motor is getting power. Since you replaced the switch and are still getting the same issue I'd think you most likely have a wiring problem. Or there's a short somewhere that's causing the motor to have power to it at all times. I'd go over all of the wiring looking for any obvious shorts and fix as needed.
view full answer...
Troubleshooting MaxxFan Plus Roof Vent
Check your power source, ensure you have voltage to your MaxxFan, MA00-04000K. Use a voltmeter to ensure your battery is delivering the required voltage (no less than 11-volts). If this is a new install please verify that you connected wiring correctly, incorrect polarity will cause problems. Make sure the white wire is grounded and the black wire is connected to your 12V power source of at least 5-amps.
view full answer...
MaxxFan Roof Vent That is Reversible
We have had this question before, and what MaxxAir has told us is that you can't just replace the circuit board to allow the vent to be reversible, you would indeed need a new vent. So for that what you can use is a MaxxFan Plus: - MaxxFan Plus Roof Vent w/ 12V Fan and Thermostat - Manual Lift - 10 Speed - White # MA00-04000K This does have the reversible fan you are looking for, and I have added a link below to a video review for you to check out as well.
view full answer...
Maxx Fan 4000K Will Not Open And Turn On
My first thought for troubleshooting is the sensor. It may be seeing moisture signal, even if a false signal, and is keeping the power lid from opening. I recommend unplugging the rain sensor and seeing if all the other functions work.
view full answer...
Troubleshooting MaxxAir MaxxFan Roof Vent Beeping When Used for Exhaust
Have you tried hooking up your MaxxAir MaxxFan Plus Roof Vent # MA00-04000K since you've disconnected the circuit board? In the past when we've reached out to MaxxAir about that beeping sound they have told us to start off by disconnecting the unit from power, waiting for a few minutes, and then connecting it again to reset the circuit board. Try doing this and let me know if that fixes the issue or not.
view full answer...
Why Would Rain Sensors on Three MaxxFan Roof Vents Stop Working at Same Time
Since all three vents had their rain sensors stop working at same time and they all have separate circuit boards I wouldn't anticipate the issue being the circuit boards or the sensors as that would be way too much of a coincidence. I would think that somehow something got on the rain sensors last time the lids were all open and now they aren't working properly. That would make the most sense to me. I'd recommend getting on top of the RV with the vents open and see if there's anything on...
view full answer...
Troubleshooting MaxxAir Roof Vent that Beeps Then Stops Working
Acccording to MaxxAir, you'll want to remove power from the MaxxAir # MA00-04000K fan for a minute or two, then reconnect to reboot the circuit board. In the vast majority of instances, this will fix the problem. You should also check that the fan is receiving 12 volt power and that the rain sensor isn't wet.
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Info for this part was:

Expert Research:

Mike L

Expert Research:

Jameson C

Expert Research:

Adam R

Updated by:

Kathleen M

Updated by:

Mary E

Updated by:

Wilson B

Updated by:

Hannah L

Updated by:

Adam Y

Updated by:

Manda E

Installed by:

Cole B

Written by:

Jacob W

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