1. RV Vents and Fans
  2. MaxxAir
  3. Roof Vent
  4. Vent
  5. With 12V Fan
  6. 14W x 14L Inch
MaxxFan Plus Roof Vent w/ 12V Fan and Thermostat - Manual Lift - 10 Speed - White

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

Item # MA00-04000K
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Our Price: $254.02
RV Vents and Fans
This item qualifies for Free Shipping
Shipping Weight: 12 lbs
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Product Images

Customer Photos


Is this right for you? Product Expert Adam Y says:

Yes, if you:

  • Has 10 different fan speeds
  • Reversible fan can exhaust air out and bring fresh air in
  • Built-in thermostat with auto mode automatically turns your fan on and off based on a set temperature

No, if you:

  • No rain shield or rain sensor, so you'll have to close it in wet weather
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 800-298-8924 for expert service.
  • All Info
  • Reviews (216)
  • Q & A (59)
  • Photos
  • Why etrailer?

MaxxAir RV Vents and Fans - MA00-04000K

  • Roof Vent
  • Vent
  • With 12V Fan
  • MaxxAir
  • 14W x 14L Inch
  • Manual Lift
  • White

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.


  • 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
  • Translucent, 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


  • 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

MaxxFan Plus Fan Motor

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

Keypad for MaxxFan Plus

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

MaxxFan Plus Dual Arms - Manual

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.

MaxxFan Plus Manual Knob

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

MaxxFan Plus 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.


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.

MaxxFan Plus With FanMate Cover

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

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   (215 Customer Reviews)

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.

- MA00-04000K

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. 544636

Still great.
Carl - 07/22/2019


- MA00-04000K

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. 546143

- MA00-04000K

All I can write about is how quickly it arrived. It showed up ahead of schedule with the box in perfect condition but has not been opened. It will be a part of a van conversion beginning in a couple weeks. 811493

- MA00-04000K

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. 807410

- MA00-04000K

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. 803426

- MA00-04000K

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. 804495

- MA00-04000K

very quite.Works as advertised. 796145

- MA00-04000K

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. 732226

- MA00-04000K

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 728833

- MA00-04000K

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! 726974

- MA00-04000K

Works great 704046

- MA00-04000K

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" 695541

- MA00-04000K

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. 679299

- MA00-04000K

Fan was better than the one we had in the RV. Only problem was trimming the sleeve to fit a 2 inch ceiling height. Shipping was quick and on time. 671064

- MA00-04000K

We replaced a Fantastic Fan with this Maxxair 4000. It was fairly easy for my husband to install. We like the 10 speed feature. 661298

- MA00-04000K

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. 641357

- MA00-04000K

you guys never disappoint !!!!!! way fast delivery, very good price! love you guys!! 596653

- MA00-04000K

Delivered and received as advertised. Thank you! 578603

- MA00-04000K

Works great easy install. Great addition to the coach. 572376

- MA00-04000K

Super fast shipping and easy instillation. Fan works very well in a 6x10 cargo camper. Great product and customer service! 565572

- MA00-04000K

Just what I ordered.Came fast and in great shape.Been installed for a year and still working like day one. 562219

- MA00-04000K

WOW.......what a fan!! Does everything it says it will DO. I especially like reversing to bring in fresh air. Will quickly exhaust hot or unpleasant air. Very quiet, even when on high. Great fan.... 556061

- MA00-04000K

Everything we bought works great 549870

- MA00-04000K

fast service and the best price I could find 546267

- MA00-04000K

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! 530138

Show More Reviews

Ask the Experts about this MaxxAir RV Vents and Fans

  • Troubleshooting MaxxFan That Beeps and Has Flashing Green Light
    I'll start off by saying that typically the flashing green lights on your MaxxFan # MA00-04000K means that there is some sort of voltage issue and even though when you tested you're getting what seems to be proper voltage, I would guess there is a short on the circuit that is causing the problem. I would recommend checking to make sure that the ground is properly attached to an area of the coach that is free from dirt, debris and corrosion. This would also be a good time to make sure...
    view full answer...
  • Replacement Circuit Board for MaxxAir Model 4751KSV05 Powered Vent Fan
    I reached out to my contact at MaxxAir and she said that the correct printed circuit board for your MaxxAir model 4751KSV05 powered vent fan is the part # MA10A04751KS.
    view full answer...
  • Troubleshooting MaxxFan Not Opening on 2017 Grand Design Reflection
    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 seeing moisture whether there or not and keeping the power lid from opening. I recommend unplugging the rain sensor and seeing if all the other functions work. If so, then simply replace that sensor. If the other features still do not work,...
    view full answer...
  • Troubleshooting MaxxAir Vent Powered Lid that Won't Open
    I've attached the owners manual for your 4900K model which is similar to the # MA00-04500K model. It sounds like your operator mechanism is bad according to my tech contact at MaxxAir. For your 4900K model you will want the Replacement Operator Mechanism for MaxxAir MaxxFan Plus or MaxxFan Deluxe Roof Vents # MA10-20281K-1AF. If you can't even manually lift the lid, this mechanism is definitely the issue.
    view full answer...
  • Troubleshooting MaxxFan Plus Roof Vent
    According to the manufacturer's instructions three beeps and a green light on the MaxxFan Plus Roof Vent # MA00-04000K indicates you have entered Auto Mode so that all seems normal. However, if the light is on but the fan has stopped working that is most likely a sign that the circuit board has failed and needs to be replaced. For MaxxAir model 4000K you'd want to use Replacement Printed Circuit Board for MaxxAir Manual Lift RV Roof Vents # MA10A21276K.
    view full answer...
  • Troubleshooting MaxxFan MA00-07500K Deluxe Foof Vent Fan
    I spoke with the folks at Airexcel, who ran through a few different troubleshooting scenarios with me. As a first step, disconnect power to the fan for a few minutes, then reconnect power to reset the circuit board. If that fails to solve the problem, there are other things you can check. Can you operate the lid manually with the knob. If you cannot, it's an indication that either the mechanism is jammed or the lift motor is shorted out and needs replacing. A replacement lift motor is...
    view full answer...
  • Replacement Round Bug Screen for MaxxAir Roof Vent
    We do have the replacement round screen for your MaxxAir roof vent, like the MaxxFan # MA00-04000K. This is listed as part # MA05-30925 on our site.
    view full answer...
  • Troubleshooting Maxxair Deluxe Fan That Starts and then Quits, Closes and Beeps Constantly
    It sounds like a circuit board issue. I recommend the Replacement Printed Circuit Board for MaxxAir Manual Lift RV Roof Vents # MA10A21275K if you have a 4500K, 7000K, or 7500K model. If your model is a 4000K, 5100K, or 6200K then Replacement Printed Circuit Board for MaxxAir Manual Lift RV Roof Vents # MA10A21276K is what you need.
    view full answer...
  • Solution for MaxxFan Roof Lid that Stopped Opening with Switch
    Sounds like the lift motor needs to be replaced as it's no longer able to raise the vent lid. For that you'd want the part # MA10-20270. Since you are able to lift the lid manually it wouldn't be the operator. If this were the problem it would either make noise like you mentioned or wouldn't allow you to manually lift it.
    view full answer...
  • How to Disable Rain Sensor Feature on MaxxAir MaxxFan RV Vent MA00-04500K
    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 something like that. You can try turning this feature off. On the vent's keypad there is a button that allows you to disable the rain sensor feature. This is noted by an arrow in the second photo.
    view full answer...
  • Recommended Fan-Tastic Vent Roof Vent With Fan For Quiet Operation
    For your vent with fan I recommend the Fan-Tastic Vent Roof Vent w/ 12V Fan and Remote - Powered Lift # FV807350. This fan has 13 speeds and has the ability to use the thermostat to conserve energy and automatically adjust for your needs. It also has a rain senor to close the dome when the sensor gets wet and resume when the sensor is dry. I've attached a video to assist. For a more economical option we have # FV802250 which has a manual lift vent and a fan with 3 speeds. This also...
    view full answer...
  • Troubleshooting Remote Not Working with MaxxFan Plus Roof Vent # MA00-04000K
    If your MaxxFan Plus Roof Vent # MA00-04000K isn't responding at all to the remote then most likely it just needs to be replaced with part # MA00A01150K or the batteries are just in need of a change. I do also recommend verifying that you're able to adjust the speed settings and other controls by using the buttons on the vent itself to rule out the vent from being the issue. If you can't adjust anything using the vent buttons either then the remote is likely fine but a replacement...
    view full answer...
  • Can the MaxxFan Trailer Roof Vent # MA00-04000K be Left Open Without Rain Getting Inside
    The only way to operate the MaxxAir MaxxFan Trailer Roof Vent # MA00-04000K without rain getting inside is to also install the MaxxAir II Rain Cover # MA00-933072. If you are wanting a single-piece unit that includes a rain cover and utilizes a thermostat and a manual lift then the MaxxAir MaxxFan Trailer Roof Vent # MA00-06200K for Smoke or # MA00-05100K for White is exactly what you are looking for. All of these roof vents come with mounting hardware but you will also need some...
    view full answer...
  • Recommended Vent Rain Cover for MaxxAir MaxxFan # MA00-04000K With Integrated Mounting Tabs
    For your MaxxAir MaxxFan Trailer Roof Vent w/ 12V Fan # MA00-04000K the recommended vent cover is the MaxxAir FanMate Rain Cover - White # MA00-955001. This is designed by the manufacturer to work with the integrated mounting tabs of the vent. I've attached a couple videos to assist. This will not only give you rain protection with full access to the fan and bug screen but also will restrict your airflow by less than 5 percent so you will be able to enjoy the vent.
    view full answer...
  • MaxFann model 4000K Will not Shut Off
    It sounds like the Circuit board has failed on your MaxxFan Plus Roof Vent part # MA00-04000K the correct replacement for that is the Replacement Printed Circuit Board for MaxxAir Manual Lift RV Roof Vents part # MA10A21276K. This is a direct replacement and will plug directly into the plugs on your current vent. You will need to reconnect your power and ground using a couple of butt connectors like Butt Connector - PVC - for 16-14g Wire part # DW05714.
    view full answer...
  • Smoked Lid for MaxxFan Plus Roof Vent # MA00-04000K
    We do have a smoked lid that fits the MaxxFan part # MA00-04000K that you have as the part number # MA10A40009K which will bolt right up easily and allow more light through.
    view full answer...
  • Wall Control Remote for 4000K Maxxfan Plus Roof Vents
    I reached out to Maxxair they informed me that the only switch or remote compatable with the MaxxFan Plus Roof Vent part # MA00-04000K is the Replacement Handheld Remote for Maxxair Roof Vent Intake/Exhaust Fans part # MA00A01150K . This will work with your current setup and has a nice hanger that will allow you to attach it to a wall in a convenient location of your choosing so it is readily available. He stated the line in the operation manual may have been a carry over from another...
    view full answer...
  • MaxxFan Plus Roof Vent Cycles a Few Times After Vent is Closed
    If you have the MaxxFan Plus Roof Vent # MA00-04000K installed then it would make sense that the fan would continue to operate with the vent closed as this acts as a ceiling fan when the vent is closed. Should you have a different MaxxFan just let me know what the model is and I can look into it further.
    view full answer...
  • Replacement Switch for MaxxAir Roof Vent
    I recommend using a Circuit Tester like # PTW2993 to determine if the switch is bad or if the fan motor is bad. If you need to replace the wall switches, I recommend the Wall Remote Switch # VC0533-02-A. If you test the motor and the motor is bad, unfortunately the manufacturer doesn't have the replacement parts available so you will need to replace the entire unit with something like the MaxxAir MaxxFan Trailer Roof Vent w/ 12V Fan # MA00-04000K or further upgrade to the integrated...
    view full answer...
  • Wiring Needed to Power MaxxAir MaxxFan Trailer Roof Vent From Trailer Battery
    If you were to run your MaxxAir MaxxFan Trailer Roof Vent w/ 12V Fan - Manual Lift - 14-1/4" x 14-1/4" - White # MA00-04000K off of a deep cycle battery you'd just need to run a power and ground wire from the battery to the vent motor and you'd be set. We have a bonded set of 12 gauge wire as part # 12-2-1 which you can run from the vent to the battery and you'll be set.
    view full answer...
  • Troubleshooting a MaxxFan Roof Vent Fan That Has Stopped Working
    Roof vents with fans like the MaxxFan Roof Vent w/ 12V Fan # MA00-04000K do not have a fuse anywhere in the fan itself. You will want to use a circuit tester like # PTW2993 to see if there is power getting to the fan. If it was installed by the manufacturer, there may be a circuit breaker that it is attached to, but most of the time they are directly wired to the 12V power. If there is power going to the switch, you may simply need to replace the switch and not the entire assembly....
    view full answer...
  • Troubleshooting MaxxAir MaxxFan 12V Fan-Powered Trailer Roof Vent That Beeps
    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 sure the white wire is grounded and the black wire is connected to your 12V power source (of at least 5-amps). Another possible reason for the malfunction is low incoming voltage. Use a voltmeter like # BTMT15 to make sure your battery is delivering...
    view full answer...
  • Troubleshooting MaxxAir Fan that Doesn't Work but Lid Does
    It sounds like your MaxxAir MaxxFan Trailer Roof Vent has a powered lift like # MA00-04000K but has a connection issue. It is getting power for the lid to open and close but not for the fan function. I recommend testing your wiring using a circuit tester like # PTW2993 to make sure you are getting power to your fan switch and if so if power is getting to your new motor. If you test the motor with a battery and it works, then you know you have switches or wiring that is in need of repair....
    view full answer...
  • Which MaxxAir Trailer Roof Vent Cover for MaxxFan Plus Roof Vent MA00-04000K
    The MaxxAir Fan Mate RV/Trailer Roof Vent Cover, part # MA00-955001 is what you're needing. These vent covers are 100 percent compatible with your # MA00-04000K fans you purchased. They attach using included pins to existing mounting tabs on the fan's mounting flange. Bug screens, part # MA00-955203 are also available for the vent covers. I've linked you to a product demonstration video featuring the vent cover. We're glad to hear that you're happy with your purchase!
    view full answer...
  • MaxxAir MaxxFan Trailer Roof Vent Operation Hours with Deep Cycle Battery
    The MaxxAir MaxxFan Trailer Roof Vent w/ 12V Fan - Manual Lift - 14-1/4" x 14-1/4" - White # MA00-04000K runs on 5 amps at 12V. I used a deep cycle battery calculator to determine that if this is the only thing running, it would take 74 hours of constant running to take your 625a deep cycle battery from a full charge to completely drained. I recommend using the Installation Kit # 344270KITW for this installation. I've attached a video to assist.
    view full answer...
  • 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...
  • Troubleshooting MaxxAir Fan Issue with New Motor
    It sounds like your MaxxAir MaxxFan Trailer Roof Vent has a powered lift like # MA00-04500K but has a connection issue. It is getting power for the lid to open and close but not for the fan function. I recommend testing your wiring using a circuit tester like # PTW2993 to make sure you are getting power to your fan switch and if so if power is getting to your new motor. If you test the motor with a battery and it works, then you know you have switches or wiring that is in need of...
    view full answer...
  • Troubleshooting No Power to MaxxFan RV Roof Vent MA00-04000K
    If you have tested the RV's power and ground wires leading to your MaxxFan Trailer Roof Vent # MA00-04000K and you have a full 12V of power reaching the vent's fan motor then there might be damage to the unit's control circuitry or the motor itself. If you apply a voltmeter like # BTMT15 to your power source wiring and you are not detecting a full 12 volts then it could be an issue with a depleted battery. This vent's motor draws 5-amps in use. If you have a spare battery known to...
    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.
    view full answer...

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Info for this part was:

Expert Research:
Mike L
Expert Research:
Jameson C
Expert Research:
Adam R
Installed by:
Cole B
Updated by:
Mary E
Updated by:
Hannah L
Updated by:
Adam Y
Written by:
Jacob W

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