Re: Help with Motor Control Board

Well, there was just going to be NO fixing this board. I replaced my fried zener diode (DZ4) and also replaced the other DZ4 as well as DZ2 and the accompanying resistor with no luck. Without a schematic it is next to impossible to properly diagnose the failing component. Searches of the internet only came up with guys who repair the boards...[B]BUT[/B] I also found a company called Gemini Controls out of Wisc. who makes the latest generation of PWM's to fix these DOA treadmills. Their NEW board was $149.00 - about $10 more than having this one...

Re: Help with Motor Control Board

Hi Crrose,

I realize this thread is almost a couple of years old, but, did you ever get this issue resolved? I found your thread while doing research for the exact same problem I'm having with yet another failed MC70 motor control board...no motor start with a burned board at DZ4A/B.

Regards,

Dave