60A high-power pwm DC motor speed controller 12V 24V 36V 48V DC 10-55V Maximum power 3000W SCM drive motor controller module

I used this as a PWM for a 55lb trolling motor on my kayak. This board burned up within first 2 hours of use. First there was no forward only reverse, then nothing. Everything is connected correctly and the board doesnt look like it has any burnt areas but will not work.