power trim problem

[chuckydoo]

I have a 1996 SPX. The 7.5a fuse in the main box blows right away when I replace it. Took the system apart and everything moves freely, motor works fine when connected to 12v supply. I am not sure whats in the sealed box behind the motor but could that be causing it? Any help will be good. Thanks

 

[popasodatastie]

Stuff to try

pretty much in the box contains relays and the sensor for the trim gauge you might be having a issue with the motor pulling more amps that what the fuse can give it i dont recommend it but you can try putting a 10amp fuse and see if it blows if it doesn't your motor might be going out. I have a 10 amp fuse in mine and it works just like the 7.5 amp fuse mine was pulling 7.6 amps so it kept blowing the 7.5 amp go figure!

 

[chuckydoo]

I tried the 10amp fuse and it blows right away too. The motor seems to run very smoothly, I have not measure the amp draw.

 

[popasodatastie]

i would mesure that, does it blow right away or after you use it?