What to do now
Turn off the water supply and verify hose routing before running another cycle.
The washer indicates that the hot and cold inlet hoses are installed incorrectly. Turn off the water supply and verify hose routing before running another cycle. Do not keep running the appliance if the code returns or a safety sign appears.
Region: United States. This page does not generalize the code to every Whirlpool washer.
The washer has detected that the cold water hose is connected to the hot inlet and the hot water hose is connected to the cold inlet.
Confirmed: Whirlpool documents HC for top-load HE washers as reversed hot and cold inlet hoses. The code appears at the end of the wash cycle.
Turn off the water supply and verify hose routing before running another cycle.
Only after safe supply checks and only if the code clears.
Stop using the washer if hoses leak, connections are corroded, or you cannot safely turn off the water supply.
Contact service or an installer if hose routing cannot be verified safely or HC returns after correction.
No reset procedure is published here because the current source does not document one for this scope.
Do not keep running cycles with reversed hoses. Correct the installation and verify with a new cycle.
Record the model label, hose colors or markings, inlet positions, and whether the machine was recently installed or moved.