Haier Washer Error Code Err10

Err10 signals that communication between the power board and the display board has been lost. These two boards must exchange data continuously for the washer to operate, and when that signal is interrupted the machine stops and displays this code. The fault can stem from a loose connector, damaged wiring, or a failed board.

A power reset may temporarily clear the code if the communication dropout was caused by a minor voltage fluctuation, but the error will return quickly if an underlying wiring or board problem exists. Resetting is worth attempting, but a recurring Err10 requires physical inspection of the connectors and harness to find the root cause.

If the fix is simply reseating a loose connector, there is no parts cost and only the cost of a service call if a technician is involved. A replacement wiring harness is generally an inexpensive part, typically in the range of $10 to $40. Replacing a display board or power board is more costly, with parts and labor often ranging from $150 to $350 depending on the specific model and labor rates in your area.

Start by cutting power to the machine and locating the wiring harness that runs between the power board and the display board. Disconnect and firmly reseat the connectors at both ends, then restore power to see if the error clears. If the error returns, inspect the harness for damaged wires. If the wiring is intact, one of the two boards likely needs to be replaced.

No. The washer disables itself when Err10 is active because reliable communication between the boards is required to control all wash functions safely. Attempting to force the machine to run in this state is not recommended. The fault should be diagnosed and corrected before resuming use.