Error code reference
KitchenAid Dishwasher Error Code OP
Thermistor connector is open (thermistor not connected to control board or open circuit detected).
Thermistor connector is open (thermistor not connected to control board or open circuit detected).
First step from the service manual
1
Check thermistor connection to control board.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
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OP on my KitchenAid KDTE334GPS
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Thermistor connector is open (thermistor not
From Tech Sheet W15108653, p.25:
1.Check thermistor connection to control board.
2.Disconnect the sensor and measure resistance at the sensor body. Expected: 10 kΩ to 12 kΩ at 77°F (25°C).
3.Check the sensor harness for opens and shorts. Back-probe the sensor pins at the control board connector; a reading outside 5 kΩ to 50 kΩ indicates a failed sensor.
Part WP8577274
Temperature thermistor
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