I have a problem with my Mr. Coffee (model prx33) coffeemaker. The
other day my wife ran vinegar water through the machine to clean out
any build up. This is a recommended regular procedure. After doing
this, the machine would not work. While the lights on the display
came on, water would not run through the machine to make coffee.
Additionally, the heating plate did not seem to get hot.

I opened the unit up to look for the thermal resistor. I checked for
continuity through the resistor and found that current flowed through
it. I assume that this test would indicate that the resistor is good.
What else should I try? Is there some place on the web that will
indicate a step-by-step procedure that I could follow in diagnosing
the machine?

Thanks, Al Kondo