by Castaway » Mon Feb 04, 2019 1:12 pm
Does it only blow when you run the windlass, or when you connect the breaker? If the former, it may be a short in the windlass, or, more likely, it is drawing too much current for the size of breaker. If it happens as soon as you reset the breaker, without the windlass being turned on, you have to disconnect things working from the windlass back to the breaker, in turn. When it doesn't happen, you know you have isolated the short, then you might just test with a multimeter until you find where it is. Or, send for a marine electrician and help pay off his mortgage! If you can't easily find the fault, that's the safe option, and cheap in the long term if it fireproofs the boat.
Gerald Freshwater,
s/y 'Castaway', (UK F35 cat ketch, centreboard, 1987)
Lerwick Boating Club
Shetland Isles, Scotland