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Go Back   SailNet Community > On Board > Gear & Maintenance > Nicro Day-Night 2000 solar vent repair
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Thread: Nicro Day-Night 2000 solar vent repair Reply to Thread
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Topic Review (Newest First)
08-13-2014 01:01 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...
06-27-2014 12:11 AM
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 12:26 PM
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...
11-12-2013 12:20 PM
svHyLyte
Re: Nicro Day-Night 2000 solar vent repair

The other night, 15 months after our home-cooked refurbishment of our solar vent, we discovered it was not running once the sun set. I was surprised to think that the battery might have given up in such a short period but hoped that was the only issue. Upon opening the battery compartment the following morning, I discovered that some rust/corrosion had developed on the contact to the base of the battery and the base of the battery itself. Once this was remove with an Emory board "borrowed" from my wife's make-up kit, the vent resumed normal operation even with the solar panel covered. So, I recharged the battery over-night with a plug-in charger and reinstalled it in the vent, but this time coating the battery terminals and contacts with a little conductive grease to prevent further corrosion and we are back in business!

FWIW...
08-20-2013 12:46 PM
svHyLyte
Re: Nicro Day-Night 2000 solar vent repair

Quote:
Originally Posted by JonnyQuest View Post
Which fan blade do y'all use and why? It comes with intake and exhaust fan blades. What's the logic for one versus the other? I have the fresh air intake fan right now but an thinking of putting the exhaust fan on instead to help drew hot rising air out of cabin. What about y'all?
We use the solar vents to discharge warm/hot air as we have a sufficient number of passive vents to allow relatively cooler air into the boat. Our vent seems to work pretty well as we've never had a problem with mold or unpleasant odors on the boat.

FWIW...
08-20-2013 12:44 PM
SlowButSteady
Re: Nicro Day-Night 2000 solar vent repair

Quote:
Originally Posted by JonnyQuest View Post
Which fan blade do y'all use and why? It comes with intake and exhaust fan blades. What's the logic for one versus the other? I have the fresh air intake fan right now but an thinking of putting the exhaust fan on instead to help drew hot rising air out of cabin. What about y'all?
I usually leave the fan on my boat in the "intake" mode. This (in theory) creates a very slight pressure in the cabin, forcing the very slight diesel smell out of the cabin and back into the engine compartment, and keeping the Admiral happy. Seems to work.
08-20-2013 11:49 AM
JonnyQuest Which fan blade do y'all use and why? It comes with intake and exhaust fan blades. What's the logic for one versus the other? I have the fresh air intake fan right now but an thinking of putting the exhaust fan on instead to help drew hot rising air out of cabin. What about y'all?
08-20-2013 11:19 AM
svHyLyte
Re: Nicro Day-Night 2000 solar vent repair

Quote:
Originally Posted by svHyLyte View Post
...August 20, 1012...

Right now the [rebuilt] vent is sitting on my back porch spinning away, where it will remain for a few daze just to ensure it will last awhile, before I reinstall it on the boat. It is amazing the one needs go through this much brain damage to effect a repair. Nicro does itself no favors in this manner.

FWIW...
It is now one year to the day since I reassembled my Nicro Solar Vent with a $14 USD hobby-shop motor, a $15 USD (or so) solar panel, and a $4 USD rechargeable NiCad battery from Radio Shack (as described earlier in posts #42 and #46) and set it running. Since then it has operated without cease, day and night, fair weather and foul, from below freezing temps to well over 100ļ F. Accordingly, I guess one can pronounce our repair a success, eh? With a little determination, one can repair these units for very little cost, particularly in comparison to the cost of a replacement.

Cheers!
04-01-2013 01:14 PM
svHyLyte
Re: Nicro Day-Night 2000 solar vent repair

Well, another 2-1/2 months has passed and our repaired Vent keeps going and going, day and night, fair weather and foul, hot or unusually cold, so I guess one can still pronounce our repair as pretty good. For those interested see prior posts #42 and #46 as to our approach.

FWIW,,,
01-29-2013 12:23 PM
hellosailor
Re: Nicro Day-Night 2000 solar vent repair

"The battery holder may be called "hot glue" "
Remember to use the marine grade hot glue. (G)
This thread has more than 10 replies. Click here to review the whole thread.

 
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