Whirlpool Dishwasher Error Code 6-6

The 6-6 error code means the Triac on the control board that operates the inlet fill valve has shorted, or the fill valve itself is mechanically stuck open. In either case, the result is uncontrolled water entering the dishwasher tub. The fault can also be triggered by excessive suds interfering with normal water level detection. Power and water supply should be shut off until the issue is diagnosed.

No, the dishwasher should not be operated with a 6-6 fault active. A shorted fill valve control circuit or a stuck-open fill valve can cause continuous water flow into the tub, creating a risk of overflow and water damage. Turn off the water supply to the dishwasher and disconnect power until the fault is resolved.

If only the fill valve requires replacement, parts typically range from $20 to $60 depending on the model, and a DIY repair avoids labor costs entirely. If a professional technician is needed, total repair costs including labor generally fall between $100 and $200. In cases where the main control board has also shorted, the board itself can add $80 to $200 or more in parts, making professional diagnosis worthwhile before purchasing components.

Yes, in many cases. The first step is to open the door and observe whether the dishwasher fills with water when it should not be. If it does, disconnect power, shut off the water supply, and replace the fill valve. This is a straightforward repair that requires basic tools and a compatible replacement valve. If replacing the fill valve does not clear the error, the control board may also need replacement, which is a more involved repair.

A power reset may temporarily clear the error display, but it will not fix the underlying hardware fault. If the fill valve is mechanically stuck open or the control board Triac has shorted, the error will return as soon as the dishwasher attempts to operate. The root cause must be repaired before the code will stay clear.