Ceiling vent in the rain

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Re: Ceiling vent in the rain

Postby friz » Sat Mar 19, 2022 6:14 pm

mtbikernate wrote:
tony.latham wrote:
They are overly sensitive to battery voltage.


Interesting. Makes me happy to have a Fantastic. ;)

Thanks,

Tony


I'm still happy to have the reversible fan motor and the better cover to keep rain out. 10 speed settings is more than I need, but aren't really a problem, either. wouldn't cost the mfr much to either give the thing some voltage protection, or at least give it a wider possible range of working voltages so it's not so sensitive. but apparently they're plenty happy giving out control boards via warranty and selling more besides.

it's a tiny thing, and it's a fixable/preventable problem. so it just winds up being an irritation more than anything.
I removed the 3 sp control on my fantastic fan and replaced it PWM motor control from ebay. Its the one with the remote potentiometer so I was able to use the original hole and knob for speed control.

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Re: Ceiling vent in the rain

Postby Gulfcoast » Sat Mar 19, 2022 10:32 pm

I bought a Fantastic fan with no control board, and added a clear plastic cover over it.

I can leave my fan wide open in any rain and no water comes in.
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Re: Ceiling vent in the rain

Postby lfhoward » Sat Mar 19, 2022 11:20 pm

friz wrote:I removed the 3 sp control on my fantastic fan and replaced it PWM motor control from ebay. Its the one with the remote potentiometer so I was able to use the original hole and knob for speed control.


Friz, do you have a picture or link to the type of PWM controller you got? I looked into these before but never found one that would work with the original speed knob. Is it this one? https://www.tnttt.com/viewtopic.php?f=50&t=67288&view=unread#p1288951
My off-road camper build on an M116A3 military chassis:
http://www.tnttt.com/viewtopic.php?f=50&t=62581
Tow vehicle: 2008 Jeep Liberty with a 4 inch lift.
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Re: Ceiling vent in the rain

Postby friz » Sat Mar 19, 2022 11:57 pm

lfhoward wrote:
friz wrote:I removed the 3 sp control on my fantastic fan and replaced it PWM motor control from ebay. Its the one with the remote potentiometer so I was able to use the original hole and knob for speed control.


Friz, do you have a picture or link to the type of PWM controller you got? I looked into these before but never found one that would work with the original speed knob. Is it this one? https://www.tnttt.com/viewtopic.php?f=50&t=67288&view=unread#p1288951
That one is too small for the fantastic fan. The one I used looked like this one. I do think that it required a little bit of modification to the post or the knob to allow it to work. These kind of projects always require some "hot rodding"
https://www.ebay.com/itm/DC-12V-24V-15V ... 632-2357-0

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Re: Ceiling vent in the rain

Postby lfhoward » Sun Mar 20, 2022 4:07 pm

Thank you, Friz. Apologies to the original poster for the thread hijack.
My off-road camper build on an M116A3 military chassis:
http://www.tnttt.com/viewtopic.php?f=50&t=62581
Tow vehicle: 2008 Jeep Liberty with a 4 inch lift.
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Re: Ceiling vent in the rain

Postby philpom » Mon Mar 21, 2022 5:25 pm

lfhoward wrote:Thank you, Friz. Apologies to the original poster for the thread hijack.


Not necessary, this is all great "van relevant" information.
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Re: Ceiling vent in the rain

Postby philpom » Mon Mar 21, 2022 5:31 pm

Graniterich wrote:So what I did was buy the single direction four speed from maxxair, cheapest one. Removed the control board, and put in a dpdt toggle switch and a pwm controller from Amazon. Fit perfectly, under twenty bucks. I now have the best of both worlds, totally variable speed with reverse. It is also very effeceint due to the pwm pcba

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Can you tell me what maxxair model you have? Also, do you have links for the dpdt switch and pwm controller you purchased?

Another question, I found some affordable maxxair 14" fans but from the pictures I can't tell if they come with the inner molding/trim piece. Some of them look like they literally just screw down on top and you are left to finish and trim it yourself.

Thanks!
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Re: Ceiling vent in the rain

Postby Graniterich » Mon Mar 21, 2022 6:00 pm

philpom wrote:
Graniterich wrote:So what I did was buy the single direction four speed from maxxair, cheapest one. Removed the control board, and put in a dpdt toggle switch and a pwm controller from Amazon. Fit perfectly, under twenty bucks. I now have the best of both worlds, totally variable speed with reverse. It is also very effeceint due to the pwm pcba

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Can you tell me what maxxair model you have? Also, do you have links for the dpdt switch and pwm controller you purchased?

Another question, I found some affordable maxxair 14" fans but from the pictures I can't tell if they come with the inner molding/trim piece. Some of them look like they literally just screw down on top and you are left to finish and trim it yourself.

Thanks!
https://www.amazon.com/gp/product/B01M1HSYO7/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I swapped out the square switch with toggle, easy to drill round hole.

Here is the fan Maxxair 00A04401K Smoke Roof Top MaxxFan with Mounting Tabs

https://www.amazon.com/gp/product/B010D ... UTF8&psc=1

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Re: Ceiling vent in the rain

Postby Cosmo » Fri Mar 25, 2022 9:19 pm

My MaxFan is 7 yrs old. I have the hand crank model, not the remote control model.
I have had it out in lots and lots of bad weather in all seasons.
Often I leave the vent open - no fan running. In that case, no water comes in unless the wind is blowing hard in the direction of the intake and pushing the rain directly at the air intake/exhaust, I will start feeling a few drops.
In that case I close the vent and open a window or other ventilation ports.

If the wind is blowing rain hard at any of the other 3 sides I am getting no rain.

Its been a good vent for me.

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