Accessory, Guages, Blower, and Bilge not working but Trim/Tilt working

[sroberts]

Hi Guys,

First post here but I've really valued all the information on this site.

Boat: 2006 Maxum 1800 MX with Mercruiser 3.0

I recently went out into the ocean for the 2nd time around Vancouver, BC. Did some swimming, started and stopped the boat a few times. Everything was great.

At the end of our trip, I pulled into the dock and unloaded all the passengers and was getting ready to load her up onto the trailer.

I then noticed that the blower wasn't running, the accessories also weren't running, gauges weren't working either. Basically there is no power going to the fuse box. The tilt and trim however seems to work and both batteries show 12.75 Volts. I do see on the electrical diagram that the tilt trim are wired separately so that explains why but not sure why everything is shut off. I checked all the fuses and they are good.

Anyone have any idea whats happening here. It just all of a sudden shut off.

I did notice a 5 amp fuse (Stereo memory) right at the battery was out and replaced it thinking that was the issue but still no power.

Please help

[mmwjr]

Does the engine still start? With all that not working I’d be looking for a loose common negative wire.

[Uncleted]

May be like my 3300 SCR fuses tucked in behind battery switch's. Even though fuse box under dash

[sroberts]

Originally Posted by mmwjr

Does the engine still start? With all that not working I’d be looking for a loose common negative wire.

No power to ignition either. I found the culprit though. It was a corroded starter wire. I was looking around the starter and as soon as I touched the wire, it snapped and broke off the terminal. Replaced the ring connector and she starts right up.

[mmwjr]

Great news! Enjoy