Instead of reinventing the wheel, why not try finding the fault and fixing it?
This can be challenging without a component-level schematic, but not impossible, especially with a little help!
It SOUNDS to me like one of your DC supply voltages is faulty, coming from the power board to the console board. Even if one voltage level is present, it is no gaurantee that another one isn't faulty. I was even considering that the RED 8-12 volt input at the console may be regulated down to 5 volts on the console board, for logic level circuits. Do you see a regulator or zener diode on that board?
Have you checked the 8-12 volts for presence and ripple?
Does the console power up otherwise, in other words are their LCDs, indicators that would require logic level voltages?
Have you attempted to identify the manufacturer, give them a call (use Google) and get a better schematic via e-mail. Often they won't, but SOMETIMES they will.
At first glance I considered the thermal cutout switch being in series with the AC voltage cutting things out, but it appears to only be connected to the PMW board, so the AC lift motor failure wouldn't apply.
Then again, do you have any idea what voltage L,W,H on the PMW board to the power board represents? If this AC voltage it might control the AC motor...and being the AC motor is black,red,white wire...and L,W,H is the same color scheme, and being it comes off he PMW board, perhaps my concern for the thermal cutoff at the DC motor is valid.
Have you checked continuity at this switch? Trust me, mechanical components such as this that regularly get stressed with heat and high current are always a top suspect!!!
I also observed in the photo that two of the smaller electrolytic caps, the smallers ones near C30, may have a slight bulge. Photograph isn't abundantly clear though. If they are bulging, especially at the foil top, replace them with suitable same value caps. Cheap chinese caps flooded the market a few years back and many consumer electronics are paying the price. I don't do consumer repairs regularly, but I've replaced caps in my dvd player and a friends HD television in recent months.
I hope my suggestions lead you on a good track!!