Whirlpool WDP730HAMZ not drying. Heater got hot during diagnostic but reported OWI sensor open

Dishwasher Repair
1

Brand:Whirlpool
Model Number:WDP730HAMZ
Main Symptom: No heat
What happens & when:

Error Code (if any): 31
Parts or tests already tried:
Photos / video link:

Heater got hot during diagnostic. But did report OWI sensor open. Couldn’t find the sensor on the schematic and don’t expect that would cause heating issue. Thought about measuring resistance of heater at the control connector - do I need to remove the front of the door to access that? What effects will the OWI issue cause?

2

This error indicates the turbidity sensor (aka- optical water indicator) has detected an error/fault, indicating it is open or there is a wiring issue.

3

Yes, I realize that. I am wondering if this could affect the heating (don’t think so) or what other things might be affected if the sensor is not replaced.