I guessed wrong the first time, too.  I just left the top un-screwed and swapped the wires when I discovered my error.  I fired it up with the "cold water wash" option selected (really, the only use for that setting is as a diagnostic mode ;-) ), and the door glass steamed up.

Re-securing the top was easier than getting at the valve from the back.  Could Westinghouse have made that whole experience any more difficult (or the hoses any more prone to wander too near the rotating pulleys)?  Recessed, impossible to get leverage on the hose fittings, and bolted to the back panel.  The trifecta.

I'm surprised the Laundromats don't have mirrored controls! :-) By the way, your present wiring matches mine, if it's any help. Hopefully our machines have the same schematic.  If they do, that puts the hot water connection on the right, as you're facing the back of the machine (the valve with the beige and blue wires).