Water in AcuRite 3-in-1 sensor

  • 1
  • Problem
  • Updated 3 years ago
  • (Edited)
Hi, I have an AcuRite 00639W weather station and I had the sensor placed on a 50 foot crank up tower near the top.  I noticed on Saturday of last week the sensor quit transmitting. I put the base unit on another channel and put it back on the channel that the sensor was on to see if it would reestablished a connection again. The connection came back, but the readings were way off. It showed 70 degrees, even though the temperature was in the 50's. And finally the sensor quit.

We did have quite a bit of rain and wind the day before and it was really humid when it quit working.

I took the sensor down the next day and discovered that there was some moisture in the battery compartment, and also in the vents where the readings come from.

So I let it dry out for about 12 hours and it seems to be working fine.


The thing that worries me is that if I put it back up there, the same thing will eventually happen again. I want it to be up for the wind readings to see how strong it is up there.

Isn't the sensor meant to be in those kinds of conditions? I had it properly installed as far as I know. I think it is unacceptable for a sensor that is meant for these kinds of conditions to get water in it and quit working until it dries out.

Don't get me wrong, I love the design of the AcuRite 00639W, and it works great when it doesn't have water in it, but this should not happen. Any advice is appreciated.

James
Photo of James

James

  • 9 Posts
  • 0 Reply Likes

Posted 3 years ago

  • 1
Photo of George D. Nincehelser

George D. Nincehelser

  • 6747 Posts
  • 1249 Reply Likes
I haven't heard of too many issues of water intrusion for the 3n1.  Are you sure the battery cover was snapped into space before being placed in the mount?

Short of a piece of plastic being out-of-alignment, the only thing I can think of might be due to a strong updraft driving rain under the pagoda louvers.

I'm not clear what you did with the channel setting.  Did you set both the receiver and the sensor to a different channel?   Is it likely another 3n1 could be nearby?  
Photo of James

James

  • 9 Posts
  • 0 Reply Likes
Hi George. Thanks for replying.

The battery cover is mounted on securely.  There was a 26 mph wind along with rain the day before it quit. That could've caused it, but it should still be able to handle that, at least that's what I think, but I don't know.

Well, what I did was switch to another channel and switch back to the channel that the sensor was on so the base station would start searching again. And there is another 3-in-1 sensor about 7 feet off of the ground, but it is about 150 feet away from the one on the tower, so I don't think it would interfere.

Also, my brother was picking up continuously transmitting  signal on 433.960(I think) until I took the batteries out of the sensor.
(Edited)
Photo of George D. Nincehelser

George D. Nincehelser

  • 6747 Posts
  • 1249 Reply Likes
You need to make sure both 3n1 sensors are on different channels.  Their advertised range is 330 feet, so at 150 feet they will be interfering if not set on different channels.  That likely explains the 50/70 degree issue on your display.

The data packets are transmitted as short bursts on 433.92Mhz every 18 seconds.  A continuous signal on 433.96 would likely jam everything up.  That frequency has to be shared with other consumer and industrial devices.  It is also used by some ham radio operators.  

You shouldn't be having the water issue, but there's still that possible updraft problem.  You might want to make sure the 3n1 is offset on a boom  from the tower to prevent that.  
Photo of James

James

  • 9 Posts
  • 0 Reply Likes
They're both on different channels, and they both worked great before that rain came through.
Photo of George D. Nincehelser

George D. Nincehelser

  • 6747 Posts
  • 1249 Reply Likes
The units are built to handle the rain.  However, it's possible that rain can be driven upward under the pagoda louvers on a tall tower.  That's why I'd recommend looking at a mounting the unit on a boom to avoid tower updraft.

It's either that our you have a defective unit that is somehow allowing rain intrusion.  It's not a normal behavior.
Photo of James

James

  • 9 Posts
  • 0 Reply Likes
It is mounted on a boom made of wood off to the side of the tower, so I'm not sure what to do. So should I put it back up there or not? And if it messes up, send it in for repairs? (It is still under warranty.)
Photo of George D. Nincehelser

George D. Nincehelser

  • 6747 Posts
  • 1249 Reply Likes
I assume your brother's 3n1 hasn't been affected by rain?

 If that's true, you could simply swap their locations.  If your brother's 3n1 gets rain intrusion on the tower, then your boom length might not be sufficient to avoid the updraft.

You could also test your 3n1 at a lower location with a hose sprinkler.  I would recommend you avoid spraying under the louvers, though.
Photo of James

James

  • 9 Posts
  • 0 Reply Likes
His still works fine. Good ideas. I could try one of those.
(Edited)
Photo of James

James

  • 9 Posts
  • 0 Reply Likes
I will probably try to lengthen the boom. The sensor is probably about two feet away from the tower on the boom. Is that long enough?
Photo of AcuRite Crystal

AcuRite Crystal

  • 2000 Posts
  • 111 Reply Likes
Hi James,

George is correct in stating that the 3N1 sensors are designed to be in the rain so moisture should not be getting in the battery compartment.  If after extending the boom, you are still noticing this happening, please let us know right away.
Photo of James

James

  • 9 Posts
  • 0 Reply Likes


Here is an image of how I have it set up. This is how it was set up when it malfunctioned. Is that a good distance from the tower, or does it need to be farther away?
(Edited)
Photo of AcuRite Crystal

AcuRite Crystal

  • 2000 Posts
  • 111 Reply Likes
Hi James,

It looks like the way you have it mounted should be fine.  I'm concerned that if you extend the boom any further out that you will lose stability in the high winds.  If you do notice this problem again though, please let us know.
Photo of James

James

  • 9 Posts
  • 0 Reply Likes
Okay. If I have this issue again, I'll let you know. Thanks!