Our 6 year old Kitchenaid dishwasher gets extremely hot in the drying cycle - plastic dishes are deformed. Could there be a faulty thermostat or some other control part that can be repaired?
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Replacement parts for WHIRLPOOL KUDS01ILBL3 UNDERCOUNTER DISHWASHER | AppliancePartsPros.com
Perhaps the vent is not opening.
I think it should open after 6 minutes of dry time.
Check that the vents wax motor has continuity 600 to 1800 ohms.
Could also be the control board.
The following should help.
https://secured.whirlpool.com/Service/SrvTechAdm.nsf/2cd44500d572193285256a45004fd9d6/4e8b0d2df77cd7e585256cd800643b6d/$FILE/KD01.pdf