Question about Frigidaire Dishwashers
...wire that connects to the switch? - Yes; if the transformer is separate from the the Control board, then it has to be checked. Basic test is continuity, the windings connected to the 120 should read ...
120 and 24 volt AC. Check the transformer secondary for correct output to controls, trace through circuit until voltage pulses. If new style, it could be just scaled up probes not reading water. Drain
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