Nicro Day-Night 2000 solar vent repair - Page 2 - SailNet Community

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  #11  
Old 06-26-2010
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I Just replaced one four year old unit that stopped working and installed three new Nicro solar fans . None of them work for longer than two minutes, even when given a flick start .
After several attempts to contact Marinco .(With no response to several emails, and three calls to their product service department ) they finally said I should replace the batteries. No change after installing new nicad rechargeable batteries.
Defender has offered a store credit .
The quality of the newer models is very poor ,with sloppy bearings and faulty units. I am using a recycled muffin fan connected to a solar panel These are not worth buying anymore.
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Old 06-27-2010
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Call Nicro...they'll probably just send you a fan blade set...

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Originally Posted by ncstatesailor View Post
If I buy the $8.95 motor.... where could I find a replacement fan blade? I just bought my boat, and the fan was missing w/ the shaft all bent on the existing motor. Thanks!
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Old 06-27-2010
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Nice! I'm going to clip and save the repair procedure and get a couple fan motors as spares.
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Old 06-27-2010
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Many Many Thanks!

My boat also has one of the older units that just started getting temperamental. Now I can do a rebuild :thumb:

--Tim.
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Old 08-24-2010
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I just rebuilt my solar vent this evening with excellent results using this approach. A couple of refinements:

First, if you carefully cut-off the original tube encasing the electric motor with a hacksaw right along the edge of the bottom of the tube (where the motor shaft exits, closest to the fan blade), you can maintain the original depth of the tube. Then all you need is to use is the top from a sugar sprinkle container, and not the container itself or any new tubing. I think a spice jar lid would work also. The lid slips right over the original tube and ultimately can be glued on at the end of the project.

Second, when you drill the hole in the center of the lid, make it large enough so the shoulder on the motor where the shaft exits will fit down inside. A 1/4' drill worked perfectly for me. This way everything will sit flat when you glue the motor to the lid.

Third, I used doorbell wire for the rewiring which was easier to solder and work with. Use a solder gun, not a torch.

Fourth, use one-minute epoxy to first glue the motor to the lid and then glue the lid over the original tube once the motor has set.

As fixed, my vent fan is quieter and seems to run on less sun than before. The Sundance Solar motor, part # 700-60062-00, is still available for less than $9.00.
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Old 08-24-2010
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Before you get the Dremel and epoxy out, try a shot of WD40 or silicon lube. I had a 3" Nicro Day/Night vent "die" on me after making louder and louder noises for months. I simply changed the battery, gave it a spritz of WD40, and it's been running strong and quiet for over a year now.
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Old 10-03-2010
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Thought I'd bump up this older thread. Mine vent, sure as the others.. almost 2 years to the day it's not working. I'm going to try the WD-40 as suggested by slowbutsteady.

What about an external battery pack? 2-4 of those little cells in parallel? would run longer on dark days and nights, no?
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Old 10-04-2010
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Denise—

I wouldn't use WD40, since it will get gummy. Use a dry film lubricant instead.
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Old 10-04-2010
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Instead of wiring multiple batteries together look online or at a battery store for a higher capacity battery of the same size and type. I did this for my 2000+ solar vent. I thought it would help the unit last more than 2 months. No such luck, but it did run longer during cloudy stretches before it died.
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Last edited by administrator; 07-28-2012 at 07:09 AM.
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Old 10-04-2010
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Quote:
Originally Posted by nickmerc View Post
Instead of wiring multiple batteries together look online or at a battery store for a higher capacity battery of the same size and type. I did this for my 2000+ solar vent. I thought it would help the unit last more than 2 months. No such luck, but it did run longer during cloudy stretches before it died.
When I replaced the battery in my vent I put in one with a much higher capacity, I think about 50% more mAH (but, without taking it apart again, I couldn't tell you the actual numbers). The rated capacity on small batteries varies quite a bit, and I'm sure that the good folks at Nicro don't put one in that are any bigger than absolutely necessary.

As to the lube used, WD40 just happens to be what I had on the boat that day. Something else might well work better; but, so far, so good.
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