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post #81 of 122 Old 08-18-2015
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Re: Nicro Day-Night 2000 solar vent repair-Final Report

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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...

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post #82 of 122 Old 01-17-2016
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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.

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post #83 of 122 Old 01-17-2016
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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
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post #84 of 122 Old 01-19-2016
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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...
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post #85 of 122 Old 01-19-2016
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Re: Nicro Day-Night 2000 solar vent repair; A Setback

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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.

Mike
Currently: Heading to warm waters over the winter on a variety of boats.

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post #86 of 122 Old 01-24-2016
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Re: Nicro Day-Night 2000 solar vent repair; A Setback

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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....

"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."
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post #87 of 122 Old 02-04-2016
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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...

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post #88 of 122 Old 08-05-2016
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Re: Nicro Day-Night 2000 solar vent repair

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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...
So... At this point we're a few daze over six months since my re-repair of our 1980's era Solar Vent with a new $8.95 motor and the little beggar continues to spin away merrily blowing hot air out of the boat. I guess if I must spend $8.95 every 40 months or so to keep it going, that's not such a bad deal eh?

Next report next January or so!

Cheers!

"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."
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post #89 of 122 Old 08-05-2016
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Re: Nicro Day-Night 2000 solar vent repair

My two year old Nicro vent gave up the ghost a few days ago, so tomorrow I'll go to the boat and remove it and try to make some needed repairs. Think I'll probably end up replacing the fan with a computer fan, and wiring it to the house batteries though a wall switch in the head.

Gary
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post #90 of 122 Old 08-06-2016
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Re: Nicro Day-Night 2000 solar vent repair

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My two year old Nicro vent gave up the ghost a few days ago, so tomorrow I'll go to the boat and remove it and try to make some needed repairs. Think I'll probably end up replacing the fan with a computer fan, and wiring it to the house batteries though a wall switch in the head.

Gary
Gary--

It might just be the battery. Before anything else, get a meter on the battery posts (without the battery of course) and see if your panel is still putting out amps. If so, and a recharge of the battery on your bench at home (or a new battery) doesn't revive the thing, Nicro sells a replacement motor for the new style vents and it's an easy swap.

FWIW...
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