Some of the error codes on a Whirlpool Duet washer include “FH,” which triggers when the washer detects no water; “F02,” which indicates that water is draining too slowly; and “F05,” which signals a water temperature sensor error. Other error codes include “Sud,” “FdU” and “FdL.”
The Whirlpool Duet washer displays the Sud error when it detects that too much detergent was used or that the load on the motor is too heavy. The FdU and FdL error codes both warn of problems with the door locking mechanism that may warrant a replacement of the part. The first signals that the door cannot be unlocked, whereas, conversely, the second indicates that the door cannot be locked.