Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 19-11-2010, 12:28   #1
Registered User

Join Date: Apr 2006
Posts: 4,413
AWI Acting Odd

My 25 year old B&G AWI just begun to act weird and I am trying to figure out what's up.

On my last sail of about 4 hours, after 45 minutes the wind speed showed 0 and this was clearly impossible because the wind was not dead astern and at the speed I was motoring.

As I arrived it began to work again but showed wind speeds over 20 which seemed much too high, although at that location and at that height above the water it could be perhaps windier than at deck level. However I don't trust it to be correct.

The wind direction seems to be working, but with no speed report the dial simply will swing all over the place.

So if there is some wind, and it reports none and no wind angle I assume that the wind angle will not work without a positive value for wind speed. When the mast swings about and there's no wind the wind angle dial also twirls around the dial... probably mimicking to some extent the windvane at the mast top. Can watch both at the same time however.

Does this sound like a faulty connection or a faulty bit of electronics up inside the AWI on the masthead? Could it be a faulty control head which is not processing the data and the AWI is sending it properly?

What is the best means to test this?

Sandero is offline   Reply With Quote
Old 19-11-2010, 13:30   #2
Registered User

Join Date: Jun 2006
Posts: 583
first i would check your grounds and then your elec. connections. then check the bearing at the masthead unit my bearing went south and the awi was all over the place. not showing wind when there was sometimes showing slow only then only higher wind speed.

mike d. is offline   Reply With Quote
Old 19-11-2010, 14:18   #3
Marine Service Provider
AnchorageGuy's Avatar

Join Date: Mar 2003
Location: Wherever the boat is!
Boat: Marine Trader 34DC
Posts: 4,618
We have had the transducers on the masthead fail all of the time. For the most part they are not repairable. But do check all connections first, including the plug at the masthead and the connectors on the back of the display. Chuck
Chesapeake Bay, ICW Hampton Roads To Key West, The Gulf Coast, The Bahamas

The Trawler Beach House
Voyages Of Sea Trek
AnchorageGuy is offline   Reply With Quote
Old 20-11-2010, 04:25   #4
Registered User

Join Date: Apr 2006
Posts: 4,413
Thanks guys... I plan to get up the mast and do an close inspection of the connections. However, visually I am tentatively ruling out bearings as the cups are spinning faster than any of the neighboring boats. I am thinking it's a processing failure which "reads" the transducer input at the AWI or at the unit itself. If I had another working one to connect to the main unit I could rule out one or the other. If it seemed to work it would be the AWI unit or some place between it and the main unit. If the readings were nonsense it would mean that the main unit was bonkers.

I was at the boat yesterday and when I turned the unit on there was no reading. A few minutes later it was show 8 -12. I believe there was some wind when I turned it on so I don't feel it is working properly.

I will try to get up the mast and report my findings.
Sandero is offline   Reply With Quote
Old 05-12-2010, 08:48   #5
Registered User

Join Date: Apr 2006
Posts: 4,413
I sent an email to B&G in FL. Jake sent me a test procedure to follow to determine the location of the problem.

The first test involved getting to the junction box at the base of the mast (inside the boat) to jump two wires to simulate the pulses from the transducer up top - one test for the speed and another for wind angle.

I opened up the access panel and pulled the wires and the junction box free.

Lo and behold everything worked fine. I suspect a faulty connection or corroded wires. I'll clean all that up and see if everything remains working. Hopefully it will and the problem will have been.... once again... corrosion.

Stay tuned for update.
Sandero is offline   Reply With Quote

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Odd Pipe Size Fittings Troubadour52993 Plumbing Systems and Fixtures 5 18-10-2010 14:24
Odd Depth Sounder Readings S/VSkylark Construction, Maintenance & Refit 3 19-01-2010 10:54
Xantrex Battery Monitor Acting Strange... CSY Man Electrical: Batteries, Generators & Solar 3 23-08-2009 15:23
Finding Work / Odd Jobs - S. Pacific? GeorgeH Pacific & South China Sea 7 13-07-2009 13:57

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 17:36.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.