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  Topic Review (Newest First)
1 Week Ago 05:11 PM
svHyLyte
Re: Nicro Day-Night 2000 solar vent repair

Well, it's been a week since I reinstalled our re-repaired Solar Vent and the device continues to spin away faithfully despite the fact that the weather has largely been overcast and crappy. So, the $8.95 replacement motor seems to have done the trick. I'll report back at the earlier of the device failing to work or six months (unless of course I meet my own demise in the interim, eh?).

FWIW...
2 Weeks Ago 09:31 AM
svHyLyte
Re: Nicro Day-Night 2000 solar vent repair; A Setback

Quote:
Originally Posted by svHyLyte View Post
Humm... It seems my re-repair of our vent will be delayed. Much to my surprise the hobby shop where I purchased the first replacement drive motor (later replaced by the same motor purchased from Sundance Solar) has gone out of business. As, it turns out, have the few competing hobby shops in the area. Upon inquiry at an adjoining business I learned that the shop had closed some while ago because the owners "couldn't compete" with internet sellers. I have, of course, gone back to Sundance Solar and ordered two of the motors (one as a spare) for about what I paid for one at the local hobby shop although--with shipping charges--my cost ends up being just about the same save for the 6.5% sales tax not collected by the internet seller. Frankly, if his is "progress", I'll pass...

More later...
Well, my re-repaired Solar Vent has been sitting on my work bench since last evening, whirling away with one of the replacement motors from Sundance Solar like a dervish. This motor replacement went much more quickly than the original repair given my prior experience. The most problematical aspect (at least for me) was the process of soldering the tiny little wires from the solar panel to the tiny little posts on the motor, given my deteriorating vision (which also makes taking a round of sights a pain in the neck!). Never-the-less, the job is done. Based upon the longevity of the prior repair, I estimate the motors are good for about 29,200 hours of running time (40 months continuous) so I shouldn't have to repeat this exercise until late 2019, assuming I'm still around at that time myself.

One thing I have noticed is that the new motor does not respond quite as readily to power from the solar panel generated by reflected sunlight (vs. direct) as did the original. I suspect this is not a property of the motor itself but of some deterioration of the performance of the solar panel which the maker claims will have a service life of "...10 to 20 years". Given the environmental conditions the solar panel must endure--even under a clear cover--I suspect it may be loosing capacity rather more quickly than the maker's estimate. (To be one the safe side, I have ordered another of the solar panels while they are still available to keep with the extra drive motor in our spares kit)

N'any case, more reports to follow in due course....
3 Weeks Ago 05:59 PM
mbianka
Re: Nicro Day-Night 2000 solar vent repair; A Setback

Quote:
Originally Posted by svHyLyte View Post
Humm... It seems my re-repair of our vent will be delayed. Much to my surprise the hobby shop where I purchased the first replacement drive motor (later replaced by the same motor purchased from Sundance Solar) has gone out of business. As, it turns out, have the few competing hobby shops in the area. Upon inquiry at an adjoining business I learned that the shop had closed some while ago because the owners "couldn't compete" with internet sellers. I have, of course, gone back to Sundance Solar and ordered two of the motors (one as a spare) for about what I paid for one at the local hobby shop although--with shipping charges--my cost ends up being just about the same save for the 6.5% sales tax not collected by the internet seller. Frankly, if his is "progress", I'll pass...

More later...
Glad you posted about your fan repair. I've got two solar fans that need to be repaired. I'll be putting them on the winter repair list.
3 Weeks Ago 12:20 PM
svHyLyte
Nicro Day-Night 2000 solar vent repair; A Setback

Humm... It seems my re-repair of our vent will be delayed. Much to my surprise the hobby shop where I purchased the first replacement drive motor (later replaced by the same motor purchased from Sundance Solar) has gone out of business. As, it turns out, have the few competing hobby shops in the area. Upon inquiry at an adjoining business I learned that the shop had closed some while ago because the owners "couldn't compete" with internet sellers. I have, of course, gone back to Sundance Solar and ordered two of the motors (one as a spare) for about what I paid for one at the local hobby shop although--with shipping charges--my cost ends up being just about the same save for the 6.5% sales tax not collected by the internet seller. Frankly, if his is "progress", I'll pass...

More later...
3 Weeks Ago 12:26 AM
CapnRon47
Re: Nicro Day-Night 2000 solar vent repair

SV!
Happy New Year. I have repaired both of my Nicro solar vents using your suggestions (they are both going on 7 years old). One is running fine, they other one was giving me fits with intermittent shutdowns. I finally bit the bullet and stripped the coating off of the back of the solar cell looking for problems. What I found was that one of the wires that interconnects the 4 panels (they are bare wires under the clear coating) was shorting against the base of the silicon. I wedged a very thin piece of plastic between the wire and the silicon, re-coated it with silicone and it is back up and running (so far for a few days anyway).

thanks for all your input and helpful ideas.

Ron
3 Weeks Ago 04:49 PM
svHyLyte
Re: Nicro Day-Night 2000 solar vent repair

Well--almost 40 months to the day, my home cooked repair finally gave up the ghost, sometime between Jan 11th and 15th. A postmortem revealed that the hobby-shop motor I used had finally died. Since it is in a sealed nylon case, I cannot tell how but, removed from the vent with power applied directly, it will not run so something internal gave out. By comparison, the solar panel still generates 2.2 volts so that was not a problem. The good news is that the motors are only $15.00 and are easily replaced. So we shall be back in business with a new motor and new 2000 mAh rechargable NiCad tomorrow. If I must spend $15.00 to keep this device functioning for 40 months at a time, that's a fair trade-off compared to the cost of replacing the entire unit, No?

Another report to follow once the new motor is installed.
08-18-2015 11:31 AM
svHyLyte
Re: Nicro Day-Night 2000 solar vent repair-Final Report

Quote:
Originally Posted by svHyLyte View Post
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...
Well--Today marks the 3rd Anniversary of my $28.00 home cooked repair to our Nicro Solar Vent and it sits above me as I type, whirling away, discharging warm/hot air under the coachroof into a very hot humid SW Florida morning. At this point the unit has lasted about half the life of the original motor and solar panels and yet is operating as well as, or better, than the original equipment. I guess we got a money's worth on the repair, eh?

FWIW...
06-28-2015 10:17 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.
06-27-2015 10:10 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
06-27-2015 07:45 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.
This thread has more than 10 replies. Click here to review the whole thread.

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