Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-12-2021, 09:06 AM   #1
Guru
 
cardude01's Avatar
 
City: Victoria TX
Vessel Name: Bijou
Vessel Model: 2008 Island Packet PY/SP
Join Date: Nov 2012
Posts: 4,936
ProMariner Prosafe1 Monitor ground wire red light

Click image for larger version

Name:	IMG_1833.jpg
Views:	8
Size:	99.4 KB
ID:	118450
Click image for larger version

Name:	IMG_1834.jpg
Views:	8
Size:	89.3 KB
ID:	118451

This is a new problem for me. I connected to shore power like I always do at my home dock, using a 50 amp splitter to two 30 amp cords. At this marina Iím getting this ground fault light. Iíve switched my 30 amp cords back and forth. Installed a new 30 amp cord I had aboard. No help.

Everything on the boat is working fine AC wise. Both air conditioners working fine.

Could my 50 amp y splitter be bad? Edit: tried a splitter the marina had and still the same problem.

The Dick hand said these are newly updated GFCI pedestals and I think I read that that causes problems with these older ProMariner isolators?

Iím an idiot when it comes to AC current so donít want to have a dangerous situation.
cardude01 is offline   Reply With Quote
Old 06-12-2021, 04:11 PM   #2
Senior Member
 
gsholz's Avatar
 
City: Out and About
Vessel Model: Sold-GB 52 Europa, Queenship 59, Tolly 45
Join Date: Nov 2016
Posts: 403
It complains about the ground wire not being connected to the shore. Could be a ground wire problem on the boat, in the cords or at the shore connection. It expects the ground wire to be connected to neutral on shore (not on boat).

I'd try to use the 30A connection to the shore directly. That would eliminate your splitter.
gsholz is offline   Reply With Quote
Old 06-12-2021, 04:54 PM   #3
Guru
 
City: Clearwater, Florida USA
Vessel Name: Seas the Bay
Vessel Model: 1981 42' Hardin Europa
Join Date: Aug 2016
Posts: 1,534
Try checking hot-gnd voltage for each phase with a meter at the pedestal, then at each end of the splitter, then at the far end of each cable, then at the back of each shore power inlet to see if you can find where the voltage drops off.

If that doesn't turn it up, disconnect the cables at the boat end and check neutral-gnd connectivity at each far end of the cable, and if it isn't very near 0-ohms, wqlk back step by step, connection by connection to the pedestal to see where neutral and ground show open or high resistance. Be careful not to short either to a hot prong while testing. Since the pedestal breaker likely opens neutral, you'll need to be hot while testing.

Alternatively, check hot to neutral and hot to ground voltages at the pedestal for each phase as well as neutral to ground. Then, take the pedestal end of the cable to the boat and bring it to each of the inlet side cables. Check for 0-to-very-low resistance for corresponding pins and open pin to pin for all other pairs.

Don't discount the possibility that the pedestal lost its ground.

If thatbdoesnt turn up the problem, connect back to shore and boat, turn on at the pedestal, turn off all breakers, and check for 0-to-low resistance neutral-bus to ground and line voltage for each phase to neutral and ground. If you have an inverter neutral bus and a regular one, test from the regular one.

The goal is basically to see where ground stops being a ground.

Happy hunting!
gkesden is online now   Reply With Quote
Old 06-12-2021, 06:12 PM   #4
Guru
 
cardude01's Avatar
 
City: Victoria TX
Vessel Name: Bijou
Vessel Model: 2008 Island Packet PY/SP
Join Date: Nov 2012
Posts: 4,936
Talked to a marine electrician and he said to measure across the neutral and ground at the outlets to make sure not lots of voltage, which would suggest there actually is a ground problem. The voltage was under 5 volts which he said was Ok.

He said he has had some other boats complain about this marina with similar problems.
cardude01 is offline   Reply With Quote
Old 06-12-2021, 07:14 PM   #5
Guru
 
City: Clearwater, Florida USA
Vessel Name: Seas the Bay
Vessel Model: 1981 42' Hardin Europa
Join Date: Aug 2016
Posts: 1,534
Quote:
Originally Posted by cardude01 View Post
Talked to a marine electrician and he said to measure across the neutral and ground at the outlets to make sure not lots of voltage, which would suggest there actually is a ground problem. The voltage was under 5 volts which he said was Ok.

He said he has had some other boats complain about this marina with similar problems.
I am certainly no marine electrician, but that doesn't ring true to me. If the problem is the marina's problem, I'd want to find it at the pedestal, not after dozens of feet of my wire, and a bunch of my devices. A random outlet is far from the pedestal to be able to blame the pedestal or upstream wiring without further testing, at least in my thinking.
gkesden is online now   Reply With Quote
Old 06-12-2021, 07:34 PM   #6
Guru
 
cardude01's Avatar
 
City: Victoria TX
Vessel Name: Bijou
Vessel Model: 2008 Island Packet PY/SP
Join Date: Nov 2012
Posts: 4,936
Ok thanks. Will investigate further.
cardude01 is offline   Reply With Quote
Old 06-19-2021, 08:53 AM   #7
Guru
 
cardude01's Avatar
 
City: Victoria TX
Vessel Name: Bijou
Vessel Model: 2008 Island Packet PY/SP
Join Date: Nov 2012
Posts: 4,936
Well I got back to my home dock, plugged in, and the lights are all green again. Still have not figured out why the pedestals at Fernandina Harbor freaked it out so bad.
cardude01 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


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 02:55 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012