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I think the machine was donated because of its defects. And that, unless it was moved roughly or with stress to its moving or movable parts, it has some severe possible aspects that need repairs.
- When you took off the side covers, did anything look broken or stressed?
- Especially, did the circuit board or boards look cracked or broken?
You might have damage caused by mechanical stress or breaking in being moved,
or you might have a defective motor control board, but a damaged/defective control console, or connections and connectors to the console damaged, is what is most likely to be the problem, as far as I can tell at this stage.
What budget would you be willing to risk, toward getting the WLEL2947 machine working again?