Hi Art.
Here the removal procedure from service manual:
The turbidity sensor-thermistor is located in the front portion of the water collection section of the
sump.
This sensor is used by the control to determine the turbidity of the
water, then adjust the cycle length as needed, and also to determine
water temperature in the dishwasher. An o-ring
seals the sensor from
leaking water into the base tray. The thermistor is wired to the
electronic control and can be checked at the control for resistance. The
thermistor is checked by reading its resistance at room temperature;
this will be 10K ohms, if it is checked after a fill, the reading will
very depending on water temperature.
To remove the turbidity sensor/ thermistor:
1. Pull unit from its installation position. Lay unit on its back.
2. Remove the base tray.
3. Push back the retaining clip and pull electrical connection from turbidity sensor/ thermistor.(See Figure 5-36)
4.
Using a 20 Torx bit, extract the two screws securing the turbidity
sensor/ thermistor to th bottom of the sump. Pull sensor from unit.
To remove the base tray:
1
. Tilt unit back to access the screws along the edge of the unit base.
If blocking materials are not available, the unit may be set on its
back.
2. Using a phillips head screwdriver, extract the two screws securing the base tray to the unit frame.
3.
Tilt the front of the base tray away from the unit then push backwards
to release the tabs from the locating slots in the rear of the unit.
4.Remove base tray for unit.
Here the picture of the Thermistor/Turbidity Module:
Regards.
Ginko
Hey friend, thank you for your inquiry!
The "E2" error code means that thermistor/turbidity sensor has failed. This can be corrected by replacing the turbidity sensor or main control board. I would suggest contacting a professional to come and properly diagnose your appliance to avoid any unnecessary part purchases. -Matt
Hi patbauns - Typically the turbidity sensor, or thermistor, is located in the base of the unit. If water is leaking from the door, it is possible that water has made its way into the base of the unit and potentially shorted the thermistor. At this point, I would strongly recommend consulting a professional to narrow down the precise issue before investing in parts that may or may not be the root cause. You can often locate a qualified service provider through the manufacturer website.
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