Reply
 
Thread Tools Search this Thread Display Modes
 
Old 04-21-2018, 04:28 PM   #1
Veteran Member
 
City: Vero Beach
Country: USA
Vessel Name: Hanks Dream
Vessel Model: Beneteau Swift Trawler44
Join Date: Feb 2017
Posts: 66
Failed Auto Pilot

I came off some pretty rough seas a few days back. Everything worked fine. The next day when I fired everything up the autopilot controls and AIS etc (2 small screens on lower helm and one on upper) did not power up. I looked at the ACU400 and found the 3 Amp fuse blown. I replaced it and it blew immediately. After talking with Ray Marine they suggested I remove the Seatalk and replace the fuse. If the power to the seatalk from the ACU400 was normal then it is not the ACU400 but likely a short somewhere, worn wire etc. I did this and the power from the unit is fine with the Seatalk disconnected. Blows fuse immediatly when connected. Has anyone had a similar problem and can point me in a probable problem location?
__________________
Advertisement

Ole Hank is offline   Reply With Quote
Old 04-21-2018, 05:05 PM   #2
Guru
 
twistedtree's Avatar
 
City: Gloucester, MA
Country: USA
Join Date: Jan 2013
Posts: 4,948
Sounds like a short in one of the seatalk attached devices, or the cabling itself. Try disconnecting devices from seatalk one at a time until you find the culprit.
__________________

__________________
www.MVTanglewood.com
twistedtree is offline   Reply With Quote
Old 04-22-2018, 11:50 AM   #3
Guru
 
Alaskan Sea-Duction's Avatar
 
City: Inside Passage Summer/Columbia River Winter
Country: USA
Vessel Name: Alaskan Sea-Duction
Vessel Model: 1988 M/Y Camargue YachtFisher
Join Date: Jul 2012
Posts: 4,812
Quote:
Originally Posted by twistedtree View Post
Sounds like a short in one of the seatalk attached devices, or the cabling itself. Try disconnecting devices from seatalk one at a time until you find the culprit.
I agree with TT and was going to suggest the same thing. The issue is indicating a short. Be aware that sometimes the SeaTalk backbone has more than one power supply connection based on how long your backbone is.

A wire may have come loose during the bad weather and shorting out....
Alaskan Sea-Duction is online now   Reply With Quote
Old 04-22-2018, 09:13 PM   #4
Senior Member
 
City: SOMERS POINT, NJ
Vessel Name: SOJOURN
Vessel Model: SWIFT TRAWLER 44
Join Date: Feb 2012
Posts: 153
Had a similar issue about 6 mos after delivery.
Traced to a Seatalk block under the upper helm station.
Block was secured directly to the fiberglass and subject to water intrusion.
This was blowing the BLUE end plugs (don't know the correct name)
Removed the block and installed a 3/4" azek block and all has been fine since.
As an FYI, this also affected the Fusion system since it is on the network
SOJOURN4 is offline   Reply With Quote
Old 05-10-2018, 10:34 PM   #5
Veteran Member
 
City: Vero Beach
Country: USA
Vessel Name: Hanks Dream
Vessel Model: Beneteau Swift Trawler44
Join Date: Feb 2017
Posts: 66
Thanks this is exactly where I traced the problem to. What is an "Azek" block?
Ole Hank is offline   Reply With Quote
Old 05-11-2018, 06:09 AM   #6
Senior Member
 
City: SOMERS POINT, NJ
Vessel Name: SOJOURN
Vessel Model: SWIFT TRAWLER 44
Join Date: Feb 2012
Posts: 153
Composition board (Not wood)

I used 3M 5200 to secure the block, then screwed the Seatalk connector to the block just to get the Seatalk terminal block out of the waterline.

Was the network end fuse (blue) blown?
__________________

SOJOURN4 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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





All times are GMT -5. The time now is 02:39 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012
×