50 amp circuitbreaker

[Wriggly12]

Hi everyone, when my battery is hooked up my boat won't even power up without holding in the 50 amp circuit breaker. So when I hold the breaker in I still can't get it to turn over, it just beeps. I just had it running fine about a week ago so I don't think it's the starter, it's only a year old. Any help would be much appreciated

[mmwjr]

Start by removing all fuses at the helm to see if the breaker will set.

Then install one at a time until it trips

You can also try disconnecting the output of the breaker to see if it will set. If not replace the breaker.

BTY never hold the breaker in as a fire may result