Honda jazz 2006 plate is blowing fuse 3 7.5amp as soon as engine is started.

[granny b]

​

Had new battery and alternator fitted. car will start and drive when battery is charged but because the fuse contorls alternator, power steering and dash. i have no charge going to battery, no powwer steering and no dials working. Anyone know what it could be? Can't see any damage to wiring and battery ground is ok.

 

[Auto Technician]

Providing the fuse rating is correct and was not blowing previously, then either a wire has been incorrectly connected or the alternator has a fault? Always track back what has been done when something is not right and the fault was not there previously.