[LazyPup]

BonesandFeathers

I agree, it is very common to turn the water off while checking a machine, then forget to turn it back on, leaving you with a no water condition, but in this case they said the machine started running even though there was no water.

The water level diaphrame switch is wired in series with the timer, and the timer should not advance to a run position until the water diaphram valve is closed.

Given that the water diaphram closes by air pressure when the water level rises, i then suspect the water diaphram is stuck in the closed position.