You said it is a 240V 3p dishwasher but you said it was served by a 208v 3p panel. Does the unit have a 208/240 rating? If not, the 208 may have been running high and it worked, but the Poco lowered the supply slightly and now it is out of operational range. Had a piece of 240v equipment that worked on 208 for years till the poco changed the transformers, input voltage droped by 3 volts and equipment quit working, Robert
