Whirlpool Dishwasher Error Code 6-10

Error code 6-10 on a Whirlpool dishwasher indicates a problem with the water tank valve in the reuse tank system. The valve may be stuck open mechanically, electrically faulty, or blocked by a contaminant. The dishwasher triggers this code when it detects the reuse tank is not filling as expected during normal operation. Running a complete normal cycle and then checking whether the tank filled is the recommended first diagnostic step.

A faulty tank valve can result in improper water management inside the dishwasher, and continuing to run the appliance with a valve stuck open could lead to water in unintended areas of the unit. It is advisable to avoid running cycles until the fault is diagnosed and corrected. If the valve is stuck open and allowing uncontrolled water flow, there is a risk of leakage that could cause water damage.

Repair costs depend on the root cause. If the fix is simply cleaning a clogged valve screen, costs are minimal and may only involve your time. If the tank valve needs to be replaced, parts typically range from $30 to $90 depending on the specific model, with professional labor adding $75 to $200 depending on your location and the technician. A control board replacement, if needed, would be the most expensive outcome and could range from $150 to $400 or more for parts and labor combined.

Some causes of error code 6-10 are accessible to a knowledgeable DIYer. Cleaning debris or mineral deposits from the valve inlet screen does not require special tools and may resolve the issue without a part replacement. However, replacing the valve solenoid or diagnosing a control board fault involves working with electrical components and water lines, which is better handled by a qualified technician if you are not comfortable with those repairs.

A power reset may temporarily clear the code from the display, but the underlying fault in the tank valve will remain. If the valve is mechanically stuck, electrically faulty, or clogged with debris, the code will return once the control attempts to operate the valve again during a cycle. A reset should only be used as part of diagnosing the issue, not as a permanent fix.