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  Topic Review (Newest First)
3 Days Ago 09:17 PM
asdf38
Re: Nicro Day-Night 2000 solar vent repair

I keep almost pulling the trigger on these vents but always hesitate at the last moment as I'm reading reviews. It's good to know there is a viable refurb option because reliability seems to be an issue.

The other reason I hesitate to pull the trigger is that I planned out a permanently wired solution which I also routinely contemplate before also pulling back and thinking "is the the most important thing to spend time on?".

Anyway, my plan is to use a low power high quality 12V computer case fan. After doing some digging I settled on this:
8412NLE which draws only 0.3W and moves 20CFM (more than the nicro quoted 1000CF per hour). The 0.3W is very little and easy even for my tiny 15W solar to keep up with.

I'd combine this with an undervoltage-detection circuit (I'm an EE) and wire it into an always-on circuit in the boat (I'd pull from the bilge pump).

I'd build it into a teak frame which would mount under the existing mushroom vent.

Note how this is all the the future tense? Anyway, I thought I'd share the plan in-case someone is more productive than me. High quality and easy to source 12V fans are easy to find. In a boat with more solar you could move significantly more air with a higher power fan.
4 Days Ago 09:10 PM
cheoah
Re: Nicro Day-Night 2000 solar vent repair

I'm just remembering I sent one back a couple years ago now and haven't heard back. I haven't had good luck with these, I don't consider them a quality product. A good idea, some good elements, but battery changes and corrosion issues or whatever with the battery ain't it. The little panel is junk I think, so I've been disappointed with them overall. I'm also pretty bummed they never replaced the other one under warranty and I should not have to babysit a process like that with an organized company with good customer service. I'm annoyed that I'll never see that $hit again, because they couldn't handle a basic warranty process. But I bet they stay busy with these things, with the amount they sell, and some of the inferior components.


Sent from my iPad using Tapatalk
4 Days Ago 06:45 PM
miatapaul
Re: Nicro Day-Night 2000 solar vent repair

I love this thread, it just keeps on going and going. This thread is why you should not close old threads.
4 Days Ago 06:08 PM
GregR
Re: Nicro Day-Night 2000 solar vent repair

Maybe my model is newer than yours, but I removed the battery, used needle nose pliers to gently slide the two battery terminals out, unscrewed the switch cap & pulled the switch clear of the housing which reveals a small stainless Phillips-head screw. Once the screw is out, the motor slides out nicely.
Now just need a new motor or repair this one.
02-20-2015 03:47 PM
travlineasy
Re: Nicro Day-Night 2000 solar vent repair

I ended up replacing my fans with 72-mm computer fans. They run day and night, very quiet, very high volume of air, and they cost less than $7 from Amazon. I power them from my house batteries and they draw just .041 amps, which is nothing. Additionally, the one I placed the head has 4 tiny, blue LED lights, which make a great night light, yet provide sufficient light to see what you are doing.

Gary
02-19-2015 12:41 PM
svHyLyte
Nicro Day-Night 2000 solar vent repair-Final Report

Well--It is now 2-1/2 years since making our home-cooked repair/upgrade to our Day-Night Solar Vent (see Post #42) and, as previously reported, other than a slight burp caused by the formation of a little rust on a battery contact after 15 months, our unit keeps on going and going and going, day and night and is now merrily spinning away. Not bad for a $28.00 repair and a whole lot less costly than a replacement. With this I will discontinue reports until when/if the unit fails. (For that eventuality, we have a second spare motor and solar panel stashed together in a vacuum pack bag in our spares locker tho' I'm guessing it will be awhile before we need it.)

FWIW...
01-26-2015 10:07 PM
AndreNJ1
Re: Nicro Day-Night 2000 solar vent repair

All,
I did not read all the pages of this thread so I apologize if this has been previously reported. I have had many of these over the years and Marinco has been good about replacing them. They tend to last about two years. But after several replacements I decided to try the 3rd party solar motor repair discussed elsewhere on this site and ordered two. But after they arrived, I find their diameter is smaller than the original motor and more problematic the spindle is shorter which makes attaching the fan a problem. So, I called Marinco tech support and asked if they sell just the motors.

As of January 2015, they are selling a re-build kit for the Day-Night solar vent (i have the 4") for $25.00. I received it and installed it. It is great. All you have to do is de-solder the old motor and solder in the new motor. Perfect fit, original spec equipment. You get a new motor, new switch, two new fans, and a new bug screen and a new gasket and screws.

Back to running silently now. Will install it in the spring.

If I think of it I will report back at the end of this summer 2015 to report if it is still running.
08-13-2014 12:01 PM
svHyLyte
Re: Nicro Day-Night 2000 solar vent repair

Well--It is now 5 days shy of 2 years since making our home-cooked repair/upgrade to our Solar Vent (see Post #42) and, other than a slight burp caused by the formation of a little rust on a battery contact after 15 months that was easily corrected, as described in an earlier update, our unit keeps on going and going and going. Again, not bad for a $28.00 repair and a whole lot less costly than a replacement. Next and final report in 6 months...

FWIW...
06-26-2014 11:11 PM
Mark Wyatt
Re: Nicro Day-Night 2000 solar vent repair

Great thread.

I have 7 4" Nicro vents on my 36' sailboat. The ventilation is great when all are in place, with no leaks even in raging rainstorms and deck washdowns.. 2 are always in place inside protected cockpit cubbys, 12v powered from the boat's batteries; they are a different breed of cat, much more airflow. 5 are 4" SS Nicro deck plate vents. I bought them all in 1992. The "replace with a deck plate feature" is critical, because sheets and guys catch on them, people step on them in rough weather and when submerged they allow green water entry, and three are at deck level (not on the doghouse), so they are replaced with the deckplates when underway.

I had one die (motor?) around 2005 and replaced it with a new one. I can't believe Marinco has discontinued the model. Anyway, I only run them in winter when it rains in San Diego, switching to Nicro Dorade vents in summer which fit into the 4" deckplates in the dry season and are not rainproof but provide fantastic ventilation.

Some thoughts: All my ventilators have become really noisy as the years have passed, and lubrication does not fix the problem. But they're still spinning, so I consider the noise comforting. Clearly bearings that are failing. After learning Marinco (Nicro) is not supporting the vents, this thread is really interesting.

So I'll add my 2 cents. Blocking diodes reduce panel voltage when sunlit and the back leakage is negligible at night (or for weeks), a waste of components. Solar cells and motor should be carefully matched so it all works out. The original units came with NiCad batteries; as they failed, replacement NiMH batteries are much better. After running the vents for 8 months when switching I left the vents face down on a bunk and they spinned for forty hours.

So the original Nicro 4" SS deck vents are fabulously good things and I am sad Marinco decided to no longer support them.

Anyhoo, glad to read there's ways to keep them running; I spent $1400 for seven of them years ago and now the company has crapped on us and we're on our own.
02-18-2014 11:26 AM
svHyLyte
Re: Nicro Day-Night 2000 solar vent repair

Well--It has now been 18 months since making our home-cooked repair/upgrade to our Solar Vent (see Post #42) and, other than a slight burp caused by the formation of a little rust on a battery contact after 15 months that was easily corrected, as described above, our unit keeps on going and going and going. Not bad for a $28.00 repair and a whole lot less costly than a replacement. Next report in 6 months...

FWIW...
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