Frigidaire dishwasher won't start

Control panel lights up but dishwasher will not start. Acts like latch switch is not functioning. Replaced latch switch twice. Each time dishwasher ran 5 to 10 times but then reverted to same old problem. Thanks for any help!

Sorry but I cannot find any info on the given model number.
Please check it.

Tried here and the Frigidaire site.