Shore power keeps tripping

[Sunseekerinspain]

Hi guys

Wondering if anyone has had a similar problem.

When plugged into the port it will sometimes work for an hour or so before tripping the fuse on the port terminal.

I’ve turned every fuse off and still have the same problem.

It’s a SUNSEEKER Camargue 51

Generator runs starts and charged fine but this has been going on for two weeks now

Thanks I’m advance

 

[Portofino]

Have you opened up ( with it disconnect) both ends and checked the connections ?

+ Tried another unit on the dock ?

 

[XPS]

Try the Calorifier, if the element has earth fault it will trip the breaker whether powered or not.

 

[Sunseekerinspain]

Have you opened up ( with it disconnect) both ends and checked the connections ?

+ Tried another unit on the dock ?

I used another cable and problem still happened in afraid

 

[Boathook]

Could well be a 'damaged' cable between where you plug in on the boat and all the fuses. Did you check the socket on the boat for a lose connection, etc ?

 

[mcanderson]

Check your water heater. Turn it off at the circuit breaker and if the shore power holds you have found the fault. You will need a new element.

 

[Sunseekerinspain]

Could well be a 'damaged' cable between where you plug in on the boat and all the fuses. Did you check the socket on the boat for a lose connection, etc ?

Ye checked the back of the adapter on the boat last week all seemed ok. Oddly sometimes it will run for an hour or more then once it trips that’s it constantly tripping

 

[Seastoke]

Ok , first check connections on your boat inlet for corrosion , does your fridges work on 230v and 12v if so turn off 240 and run fridge on 12. also it might be tripping on overload not earth fault.

 

[Momac]

Breaker could be faulty . they do wear out eventually .

 

[Seastoke]

Is it 16 or 32a . If it trips at random times ,start and make a list what is switched on at the time of trip . To tell if it’s the rcbo just plug into another socket ,if it still trips it’s on the boat. Does it ever do it when you are in bed.

 

[Bouba]

Usually, if the generator can run the boat under the same load without tripping and you’ve tried different cables and different shore side sockets...(and asked your neighbors if they are having problems) then the problem has to be from where your shore power cable plugs in to your boat up to the fuse board that it shares with the generator.
If you haven’t tried all the above permutations, I would just pull out the hot water element because it’s a weak point

 

[dustywings]

Check your water heater. Turn it off at the circuit breaker and if the shore power holds you have found the fault. You will need a new element.

This was the cause of my similar situation, a new element solved it!

 

[Seastoke]

Usually, if the generator can run the boat under the same load without tripping and you’ve tried different cables and different shore side sockets...(and asked your neighbors if they are having problems) then the problem has to be from where your shore power cable plugs in to your boat up to the fuse board that it shares with the generator.
If you haven’t tried all the above permutations, I would just pull out the hot water element because it’s a weak point

He does not say he has tried another shore socket

 

[Bouba]

He does not say he has tried another shore socket

My post was meant as instructional...usually talking to your neighbors solves the mystery

 

[Seastoke]

This was the cause of my similar situation, a new element solved it!

Turning a fuse off does not work if it is an earth fault as the neutral is still connected ,

 

[Hurricane]

This was the cause of my similar situation, a new element solved it!

Same for me - several times over the last 15 years.

OP - Do you have a "Hot Water" switch on your main electrical distribution panel?
If so, switch it off and see if the problem goes away.
If so, you need a new immersion heater - they always cause this issue.

EDIT - after reading Seastoke's post - he may be correct.

One other time this has happened to people on this forum was the Ice Maker - try completely disconnecting any Ice Makers (physically unplug any) - if you have one.
Then try again.

 

[Seastoke]

Ok start again , turn off shore power , disconnect brown and blue wire off clarifier and make safe in connector, or at worst tape safe , switch on shore power with all fuses and and switches on even hot water , if it trips it is not the clarifier element.

 

[Bouba]

The last two times it’s happened to me...the first was the hot water element...the second was the shore power cable...it seemed that fishermen tried to pull my boat closer to shore to retrieve their hooks (which the bastards left for my wife to catch her hand on), by using the cable as a rope and ripping it in two

 

[Seastoke]

The last two times it’s happened to me...the first was the hot water element...the second was the shore power cable...it seemed that fishermen tried to pull my boat closer to shore to retrieve their hooks (which the bastards left for my wife to catch her hand on), by using the cable as a rope and ripping it in two

I would expect your to be your electric blanket.

 

[Bouba]

I would expect your to be your electric blanket.

I have not been able to find a suitable electric blanket for the boat...I’ve searched for years