Kenmore Dishwasher Error Code 8-3

Error code 8-3 on a Kenmore dishwasher means the control has detected incoming water temperature below 18°C (65°F). The dishwasher requires hot water to operate correctly, and this code alerts you that the water entering the unit is too cold. The fault is detected through the Temperature Sensing Circuit, which includes the OWI sensor. The recommended incoming water temperature is 49°C (120°F).

Resetting the dishwasher by disconnecting power may temporarily clear the code, but it will return if the underlying cause is not corrected. If the incoming water temperature is still below 18°C when the next cycle begins, the control will detect the fault again and redisplay 8-3. Address the water supply temperature or sensor issue first for a lasting fix.

If the fix is simply reconnecting to the hot water supply or adjusting the water heater setting, there is no parts cost involved. If the OWI sensor needs to be replaced, parts and labor costs typically range from around $75 to $200 depending on parts availability and local service rates. Having a technician diagnose and measure resistance in the Temperature Sensing Circuit before ordering parts can help avoid unnecessary expenses.

Start by confirming the dishwasher is connected to the hot water supply line under the sink. Next, run the hot water at your kitchen sink until it reaches full temperature, then start the dishwasher cycle. If the error persists, unplug the dishwasher, inspect and reseat all wiring connections in the Temperature Sensing Circuit, and measure the circuit resistance. If the OWI sensor tests out of specification, it will need to be replaced.

Running the dishwasher with code 8-3 active is not dangerous in terms of physical safety, but wash performance will be significantly reduced because cold water does not dissolve detergent or sanitize dishes effectively. It is best to resolve the water temperature issue before continuing to use the appliance to ensure proper cleaning results.