Anemometer not showing wind speed. Why does this keep happening to me?

[Cool Hand Luke]

Hey guys!

I was sailing down from Jersey City, NJ, to Cape May, NJ, last week with my fiancé. But, she got seasick and we ended up stopping in Longport, right outside of Atlantic City. All the electronics were working correctly. Fast forward to last night. I came back to the boat after being away for 4 days. I'm sailing back solo back to Jersey City and what do I notice??? My wind instruments are shot. The anemometer spins on top of the mast and the arrow points in the direction of the wind, but the Raymarine ST70 is stuck. Any thoughts??? It's a 2012 Jeanneau Sun Odyssey 409 and I've owned it for less than a year. Is this a sign of things to come??? Sh*t breaking from now on?

[chad-wl]

It is most likely that the Anemometer is not getting power.
That would be the Ground to Red wire which should be +8V.

The Green / Blue are between 2-8V and indicate the angle of wind, the Yellow wire indicates 0-5V depending on wind speed.

Since there is nothing being returned, it's likely that there is no power, or the cable is disconnected.

Trace it to the mast, there is probably a junction box in the mast area too. Ours is a keel stepped mast, so it's right below the entrance of the mast to the boat

[Cool Hand Luke]

Originally Posted by chad-wl

It is most likely that the Anemometer is not getting power.
That would be the Ground to Red wire which should be +8V.

The Green / Blue are between 2-8V and indicate the angle of wind, the Yellow wire indicates 0-5V depending on wind speed.

Since there is nothing being returned, it's likely that there is no power, or the cable is disconnected.

Trace it to the mast, there is probably a junction box in the mast area too. Ours is a keel stepped mast, so it's right below the entrance of the mast to the boat

Thank you!! I also I noticed my outlets aren't working. Probably a power issue for both. Would I look at the fuses or circuit breakers anywhere? There's a mess behind the panel and don't know which fuse or circuit to look at first

[Cool Hand Luke]

Still no luck... anyone have any other ideas? I would greatly, greatly appreciate it.

[chad-wl]

Originally Posted by Cool Hand Luke

Still no luck... anyone have any other ideas? I would greatly, greatly appreciate it.

Get a multimeter and start at the cable powering the wind display, work backwards following the power until you get to the battery or breaker. Not much we can offer other then start at the end and work forward.

Did your outlets start working? Did you mean 12v DC outlets or shore power outlets?

[Cool Hand Luke]

Originally Posted by chad-wl

Get a multimeter and start at the cable powering the wind display, work backwards following the power until you get to the battery or breaker. Not much we can offer other then start at the end and work forward.

Did your outlets start working? Did you mean 12v DC outlets or shore power outlets?

And what do I do with the multimeter? Sorry to sound like a beginner. If the power is there, then keep moving backwards? And I test for power by pressing the red and black multimeter terminals to the cable? I'm assuming the power is there because the screen works and shows depth, but does not show the wind direction and wind speed. Yet, the top of the mast is spinning

Outlets still out... it's the regular electrical outlets 110/120 V (3 prong) on the vessel that only work on shore power. The boat is connected to shore power and batteries are charging and everything else works. 12V DC cigarette outlets work, too. Just the normal electrical outlets don't work. There are 3 of them - 1 in each cabin.

I looked behind the switch panel and there are a bunch of wires and 10AMP blade fuses and I'm lost on all of it. Ugh

[Cool Hand Luke]

Outlets work. Anemometer still doesn't

[Don C L]

Can't say what's wrong with the anemometer, though I would not say it is not necessarily a big thing to worry about. BUT, yes, it is a sign of things to come! Stuff breaks all the time on all boats, new and old! Don't let it get you down. You can sail safely without it till you track down the power loss there.
I know, sorry, not very helpful.
Checked the fuses right?

[Cool Hand Luke]

Originally Posted by Don C L

Can't say what's wrong with the anemometer, though I would not say it is not necessarily a big thing to worry about. BUT, yes, it is a sign of things to come! Stuff breaks all the time on all boats, new and old! Don't let it get you down. You can sail safely without it till you track down the power loss there.
I know, sorry, not very helpful.
Checked the fuses right?

Thank you! I appreciate it. I checked the fuses but I'll check them again. I guess I'll have to get dirty and start taking it apart. I was thinking of buying a new one... a Raymarine i60. But if it's not the actual display, then it'll be throwing money out the window

[svHyLyte]

Originally Posted by Cool Hand Luke

Thank you! I appreciate it. I checked the fuses but I'll check them again. I guess I'll have to get dirty and start taking it apart. I was thinking of buying a new one... a Raymarine i60. But if it's not the actual display, then it'll be throwing money out the window

Pull the fuses and ensure that the contacts are clean and dry. Any corrosion can goof you up. Apply a little "NoOx" to the fuse ends before you reinstall them. FWIW...

[Tkeeth]

My sensor went out, take it off and send it to Dan Gerhardt, He will fix it for about $100. He did a great job for me on that and st 7000.

[davewtsnape]

I sometimes have that problem and it's always caused by corrosion on the connector at the mast foot.

[Seeking Solace]

They're telling you to trace the power from the instrument on the mast backwards, not the meter. It's possible the issue can be the sensor itself, or anywhere in between.

Have you reset the meter yet?

My poor sailboat doesn't even have the windex up right now. A Pelican decided to land on it and pulled it off the mast. At least I was lucky it landed in the cockpit without killing anyone and I get the joy of bolting it back down when I go up to fix the anchor light this week. Indeed things are going to break, but usually it is easy enough to fix. A wise and prudent project is to label every wire and fuse so you can easily find electrical issues when you need to work on things. Make a schematic if possible, you won't be wasting your time.

[Cool Hand Luke]

Thank you for the posts, guys!! I'll check out the actual ST60 unit tomorrow. In the meantime, I took my girl apart a little to trace the culprit

[Cool Hand Luke]