Process of elimination
Start at the battery
Check the ground to the pump
check the primary " "
" Relay on the pump
" Connections to the control
" control
" to see if you have power to the pump motor when you press the down button
" up button
I hope you have tools and a basic knowledge of electricity
Also do you know what a fusible link is? check them.
Does the Engine crank? theres a reset button on the engine wire harness where it plugs into the engine ( mounted on the intake manifold)push it in- any resistance? if so something tripped it, dead short, cooked motor, something! now the fun begins
Have an engine manual? yes-(Read it so you know what's involved, not the whole thing. Just the parts that apply)
No?- you need one now
A little word of wisdom
Don't ever wrap the fuse in foil
Or put in over sized fuses
Thats how fires start on boats