Maxxair 503.1555 00-06200K MaxxFan Ventillation Fan with Smoke Lid and Manual Opening Keypad Control

"Revised" 11/29/2024Hey, these fans are excellent!I had some issues early on but Maxxair stepped up and absolutely took care of me. Thank you Maxxair. I should have revised this 1.5 years ago.I would absolutely purchase this fan again, though the current one that Maxxair helped me with works flawelessly so I don't have a need to buy another. Super quiet, high air flow, and I run it all night in our camping trailer have experienced no negative effects, and this is on my trailer batteries for days at a time. It uses very little juice. I highly recommend. I'm sure Maxxair has removed all the ones with circuit boards that were having problems. I would buy with confidence. I only leave the information below from my original review to show where I've come from to where I am now with Maxxair. They solve problems!Read the negative reviews and believe them. I took a chance against my better judgement and purchased this fan. Just like you'll read in negative reviews and in a host of forums, for many buyers this fan runs perfectly for a while, then one day you turn it on, it runs for 10 seconds, then you get a loud obnoxious beep for about 10 seconds and it won't run. Everything I've researched says its board has very strict voltage requirements. RV's simply don't lock on to exactly 12v all day and night. Shore power, battery charge fluctuations and other factors cause a voltage variance. Everything else in my trailer runs fine with these variances, but apparently the Maxxair board was designed to operate in a vacuum with minimal voltage fluctuation. I've reached out to Maxxair but have not yet heard back. For the two days it functioned it was great. I'd recommend shopping other brands. If I get a positive solution from Maxxair I'll quickly update this review.Update 9/12/22 Still nothing from Maxxair except for the auto reply to my email 4 days ago saying someone will respond to me quickly!Update 4/25/2023. Maxxair is sending me a new circuit board. There was no explanation, just an email stating that I'll be receiving one. Hopefully this makes the fan function as it should. If it does, I'll amend this review.

I have a Jayco 25 ft travel trailer and I left the vent open going down the road and the wind made the crank break. I could have just fixed it with an $8 replacement part but I saw this and had to have it. I liked the idea of having a built in cover so I'd never have to worry about leaving it open again, and that it has a much more useful fan over the tiny one speed fan my old unit had.The installation video on here makes the job really easy. Took me a little over 3 hours. The hardest thing is removing the old caulk which just takes time and elbow grease, just peel if off by hand, a putty knife helps. The fan works great and is very powerful. It is virtually silent on the lowest setting and will cool the unit nicely at the highest setting. It also is reversible and has a auto themostat that is set to 76 deg.One thing I did not count on, installed the controls are high up in the unit housing depending on how thick your roof is (mine is 5 inches). The crank and fan switch on the old vent were much lower in the housing and my wife could easily reach them. She now has to stand on her tippy toes to reach the controls on this one. So I advise spending the additional money to get the remote given that issue (the remote allows you to do everything and even open and close the vent without touching the fan). But otherwise very happy with it. You can tell its a very high quality unit.

The Winnebago OEM bathroom vent fan is a pitiful waste of time. I wanted a vent I could leave open in heavy rain that would also move air. So far this Maxx Fan is functioning fine. Based on all the problems in the reviews I have no idea how long it will last. Installation is very easy for anyone with DIY skills.

There was a problem with the first one I ordered. I don't remember exactly what, but I was supplied with a replacement very quickly, so no complaints. Actually on this score Customer Service gets a good mark.Pretty easy to install, runs nicely, rain handling is great.Where I had trouble is after I installed a solar panel on my system. On a hot, sunny day when I needed it the most, it went beep-beep and shut off. Started it up and it did it again. I realized that the voltage feeding from the solar panel was charging the system at as high as 14.8 volts, so I did some research.Turns out, according to some of the "boards" (reporting data from MaxxAir customer service) that the main board of the fan is only rated up to the mid 13.-- volt range. If it is exposed to 14+ it does what I experienced and can even burn out the control board of the unit. This is a serious design flaw because alternators and solar panels often put out 14+ voltage.The solution (which I have to credit to discussion forums) is to put in a voltage regulator on the circuit the feeds your fan. I tied the linked unit into the feed to my switcher panel that controls the lights, fan, charge ports, and a few other circuits.https://www.amazon.com/dp/B07WFMKMV9?psc=1&ref=ppx_yo2ov_dt_b_product_detailsIt takes 8v-40v input and outputs a stable 12.1-12.2v output, with to a max of 6 amps, plenty for the stuff I have running off of it.The solar, inverter, and another DC line or two I tie directly to the battery circuit (with a braker switch for things I want to be able to turn off en masse).The fan works great now and I don't have to worry about frying it. It's annoying that this needed to be done, especially without MaxxAir not warning of it, but with this improvement, I think it's the best rooftop vent solution available.