EVC up trim/tilt button on port side not working again!

[princecraft_196]

Hello,

-Volvo duoprop sterndrive, twin engines.
-2008

Last year my EVC up trim tilt button on port sterndrive stop working.
In order to make it work I had jump the relay.
So I change the trim tilt modules. that fix the issue, cool.

This morning when I get out the boat for winter, i press again the up port trim tilt, and again not working ! grrr ! so I bypass it again direct on the relay.

I think my trim tilt module broke again. Any idea why it blow up.

thanks