Kenmore Dishwasher Error Code 8-2

Error code 8-2 on a Kenmore dishwasher means the appliance detected that incoming water temperature was below 32°C (90°F) when the cycle started. This is not an internal component failure but rather a supply water temperature issue. The dishwasher requires water to enter at or near 49°C (120°F) for proper cleaning performance. Running the hot water at the kitchen sink before starting the dishwasher is the recommended first step.

Resetting the dishwasher will clear the displayed error, but the code will return if the underlying water temperature issue is not corrected first. The dishwasher checks inlet water temperature at the start of each cycle, so the fault will reappear whenever cold water enters the tub. Address the supply temperature before restarting the cycle to prevent an immediate repeat of the error.

In most cases, fixing error code 8-2 costs nothing because it is a supply water condition rather than a parts failure. If your water heater thermostat needs adjustment, that is typically a no-cost DIY task. If a plumber is needed to correct an incorrect supply line connection, service call costs generally range from $75 to $200 depending on your area. No dishwasher parts replacement is expected for this specific error.

Turn on the hot water tap at the kitchen sink closest to the dishwasher and let it run for about 60 seconds until the water is fully hot. Then start the dishwasher immediately so that warm water enters the tub from the beginning of the cycle. Also confirm your home water heater is set to at least 49°C (120°F). If the error continues, verify the dishwasher is connected to the hot water supply line and not the cold line.

Error code 8-2 is not a safety hazard. The dishwasher is alerting you that water entering the tub is too cool for effective cleaning and sanitization, not that there is an electrical fault or a risk of injury. The practical concern is that low inlet water temperature can result in poor wash performance and inadequate detergent activation. Correcting the supply temperature resolves the issue completely.