H80 LED on pump and pump stopped working.

Hi everyone, this is my first post here and it is following unfortunate events.

I've had an H80 for close to a year and for that year it worked well and I was using the stock fans. I recently bought a twin pack of Corsair SP120 quiet edition fans PWM. Plugged the new fans into the pump's 4-pin header.

When I started my computer, smoke came out of the 4-pin header on the pump. The next time I turned the computer on, the LED lights on the pump stopped working and I believe the pump is damaged because the I can't feel the flow through the tubes. Also, I get a CPU FAN error when I start the computer. Actually, I'm positive the pump is busted because the CPU temps keep increasing to never before seen levels.

What did I do wrong and what can I do to fix it? Also, my H80 came with a five year guarantee, can I use that in this situation?

Thank you for any and all replies!