Wierd Electronic/Electrical issue 2002 300 DA Sundancer

[Bill M]

Here's the scenario: Nice Father's Day cruise, heading to a local restaurant, (tachs are a little jumpy) and lose power on the port engine.
Dock with one engine, shut everything down, then restart both engines, no problem. An hour later after lunch, starboard starts, port does not. Limp home on one engine, shut everything down.
Go out a little later and both engines start, take for a cruise and everything is fine. Shut boat down for the night, go out yesterday and both engines run beautifully.
Try to raise the engine hatch to have a look around, no response from dash switches for the hatch, bilge pump or bilge exhaust fan. On the right pad, no response from the Windlass control or cockpit lights. Everything else on the left/right keypads work!
Could be one of the batteries? or a connector?
Any help would be appreciated! Thanks!

 

[JimG]

Sounds like a loose connection... maybe a ground. Check the battery terminals. You may have to pull the pins on the lift pistons to get the hatch up.

Good luck and welcome to CSR!

 

[Bill M]

Sounds like a loose connection... maybe a ground. Check the battery terminals. You may have to pull the pins on the lift pistons to get the hatch up.

Good luck and welcome to CSR!

Ok, thanks Jim! That's where I'll start first, just need to grab a neighbor to lift the hatch with me!

 

[Bill M]

Sooo... I finally get the pin pulled and get the engine hatch open. Check everything I could see: no loose connections, no loose grounds, no corrosion that is apparent anywhere. I pulled the battery cables to clean the posts and put a voltmeter and 3 of them read 13.2v and one is at 6.1v..... Hooray, right? Wrong! I replace the two older batteries that are 3 years old, hook them up exactly as the old ones (really cant mix that up on this boat) and now my Promariner Pronautic 1220 Battery charger ramps up to 20+amps and kicks the DC breaker off in about one minute... What the heck?? HELP!

 

[beasterdamas]

Sooo... I finally get the pin pulled and get the engine hatch open. Check everything I could see: no loose connections, no loose grounds, no corrosion that is apparent anywhere. I pulled the battery cables to clean the posts and put a voltmeter and 3 of them read 13.2v and one is at 6.1v..... Hooray, right? Wrong! I replace the two older batteries that are 3 years old, hook them up exactly as the old ones (really cant mix that up on this boat) and now my Promariner Pronautic 1220 Battery charger ramps up to 20+amps and kicks the DC breaker off in about one minute... What the heck?? HELP!

Did you resolve the problem? If so what was causing? I’m having similar issues with our 2010370DA