I HAVE A HEART INTERFACE FREEDOM 25. MODEL 81-0253-12 204). I NEE THE INSTALLATION WIRING DIAGRAM

Question edited for clarity, capital letters and 'what it is'..
Question moved from Boating to model category.

Direct from the maker

FREEDOM SW - Xantrex

https://xantrex.com > Inverter/Chargers

Freedom SW series from Xantrex are the most advanced and capable inverter chargers in the mobile market. ... FREEDOM SW 12V 3012. 3000W/150A, 12V.

Or any of these fine outlets

https://www.google.com/search?q=xantrex+freedom+sw+3012+parts

..

The other thing to consider is that auxiliary batteries need charge while sitting, plugged in, which can be accomplished other ways.

It sound like unit is in inverter mode. You should read user manual because those chargers/inverters could be very difficult to setup right

The following site gives you an idea. Please download the manual from there in pdf format.
http://www.xantrex.com/documents/Discontinued-Products/Freedom%20Jazz%201000%20-%201500%20-%202500.pdf

Yes, *if* you can find an exact replacement and get someone to sell it to you. In order to protect their propriety designs, Xantrex only provides OEM replacement parts to its factory authorized service network, but you might find one of them locally who would be willing to sell you the part, especially if the unit is on a boat (a Marine Freedom 25?), and can't be brought to them.

hi im alwin the Q45 is JE200 while the Q47 is JE210,goodluck,

Assuming it was working correctly at some time in the recent past (i.e. not a new installation and/or changed wiring), the "Invert" light is off on the panel and will not come on when you press the button, battery voltage is between 10V and 15V and you don't have a bad battery/cell that pulls the entire bank down the instant the charging voltage is removed, and the unit is well-ventilated and not in thermal overload, the problem is most likely an internal failure which will necessitate taking the unit to a factory authorized service center, since Xantrex does not sell parts or schematics to the general public.

try the local repair section of fixya

The fan can be replaced. It is very similar to some of the PC cooling fans. I've got the same problem (again) and will be replacing it soon. I will give you the fan specs once I remove my fan ( I think it is 4" 120VAC - will let you know when I repair mine).

John--

Don't know how old your post was regarding "a free technical home" for your Heart 25. If it is still available, I will pay for shipping and handling.

Thanks

Joe

[email protected]