Maytag
I have the Maytag manual. Probably wouldn't be that hard to fix. You might want to take the lid apart to see if there are any bare wires in there. There are two glass enclosed mercury switches in there, and it won't fill or agitate unless the switches are working. The switches themselves probably are OK, but the connections could be worn out.
These Maytags were grounded with a cold water hose that had an electrical wire in it. You need to run a separate ground wire from the washer chasis to a good ground before you fool around with it again. Of course if there is a short in there you will blow a fuse or trip a breaker right away.
It is kind of funny, my 1999 Maytag has a grounding screw on the back of an auxilary ground, my 1980 one did too.
Those Maytag AMP machines are very fun to watch. I connected a regular light switch to that area in the back covered by a plate. It is actually meant to have a dealer switch for demonstration. There was a kit that had two toggleswitches, one for fill and the other for agitation/spin. I connected only one switch, using "douglas" connectors (snap together connectors). That way when I remove the switch, I can snap the wires together and the washer will be back to original condition.
Martin