Engine room blower fuse?

Jun 23, 2013
271
Beneteau 373 Newport
Need help locating fuse.
the inline blower on our 2004 373 needs to be replaced- Jabsco model no longer in production. The label on it notes a 4 amp fuse requirement. The higher volume replacement Seachoice I purchased has a 4 amp draw and requires a 6 amp fuse.
No fuse is shown in the electrical schematic, only a relay.
- is there a fuse?
- if yes where?