GE Dishwasher Error Code Turbidity Temp Sensor

This error means the control board has detected that the turbidity temperature sensor thermistor is shorted, open, or returning a constant reading that does not change with temperature. The turbidity sensor monitors water clarity and temperature to help the dishwasher adjust its wash cycle. When the thermistor fails in any of these ways, the dishwasher can no longer get accurate feedback from the water and flags the fault. The first step is to inspect the sensor and its wiring for damage or corrosion.

A reset may temporarily clear the error code from the display, but it will return as soon as the control board runs through its diagnostics and detects the same fault condition. The underlying problem with the thermistor or its wiring must be identified and corrected for the code to stay clear. Repeatedly resetting without addressing the root cause will not restore proper dishwasher operation.

If the issue is only a corroded connector or damaged wire, repair costs may be minimal, covering just the technician's time or a small wiring repair kit. Replacing the turbidity sensor assembly typically puts parts costs in the range of $30 to $80 depending on the model, with professional labor adding $75 to $150 or more depending on your location. If the control board turns out to be the cause, costs increase significantly, often ranging from $150 to $350 or more for parts and labor.

A knowledgeable DIYer can perform basic checks such as inspecting the wiring harness and connectors for corrosion, loose connections, or visible damage. Measuring the thermistor's resistance with a multimeter to check for an open or shorted circuit is also within reach for someone comfortable with appliance diagnostics. If the sensor itself has failed, replacing the turbidity sensor assembly is a straightforward repair on most GE dishwasher models. However, if the control board is suspected, professional diagnosis is recommended.

Running the dishwasher with this error active is generally not recommended. Without accurate temperature and turbidity feedback, the control board cannot properly regulate the wash cycle, which may result in poorly cleaned dishes or incorrect water temperatures. In some cases the dishwasher may refuse to complete a cycle. Addressing the fault before continued use is the safer approach.