Hello everyone. I read the sidebar to hopefully get an idea if it was cool to post this here but please let me know if it isn't.

I had an attic fan stop working. It is only 2 years old and the solar panel that it was hooked up to was outputting 26.4 V so there was no issue with the solar panel. I followed this down through the thermostat and that too carried a correct voltage. This in my mind would imply that there is an issue with the motor itself.

I tested the motor for any resistance. I didn't feel any resistance other than the magnets themselves so I opened up the motor housing and found this.

The board

The melted down suspect

From what it looks like, and I could definitely be wrong here, but it looks like there is a BJT that melted down. I thought about replacing the BJT (if it really is a BJT) but would that actually fix the issue?

Any insight would be great. I will post progress if I fix it.

Thank you so much and again please let me know if I should post this elsewhere.