batteries not charging? alternator or fuse?

[shirlz72]

Hi,

My batteries on my SAN 230 are not charging. they are brand new and charge fine on the charger so i can get a day or two out of them before they start going flat. i have the linc screen which shows the voltage so i can tell they are not charging. i looked for a fuse to the alterenator but have had no luck finding one. the boat only has 240 hrs on it. would it be possible that the alternator would have worn out in this time? if so what is the part number as i cant see one on it? it is a 2010 SAN 230 with the zr409 engine

[xrichard]

I don't believe Nautique puts a fuse between the alternator and the battery (...at least they didn't on my 08 210). You can verify the connection by checking continuity with a multimeter.

I don't know the part number for you, but I'm sure Nautique Parts does.

[leetudor]

Check the output with a volt/ohm meter.