Vision Washer Error Code Er:11

Er:11 means the main control board and the inverter board have lost communication with each other. The inverter board controls motor speed, and without a reliable signal from the main control, the washer cannot operate safely. The error points first to the wire harness connecting these two boards as the likely source of the problem.

No, you should not continue running the washer while Er:11 is active. The error indicates the motor control system is not communicating properly, which means motor speed cannot be regulated correctly. Running the washer in this condition could damage the motor, the inverter board, or other components.

Repair cost depends on the failed component. If only the wire harness needs replacement, parts typically range from $15 to $60 depending on the harness assembly. An inverter board replacement generally runs $80 to $200 or more for the part alone, with additional labor costs if a technician performs the repair. Main control board replacements fall in a similar price range.

Start by unplugging the washer and inspecting the wire harness that runs between the main control board and the inverter board. Check both connectors for secure seating, and look along the harness for any pinched, chafed, or broken wires. If the harness is intact and connections are tight, the next step is testing the inverter board and, if needed, the main control board for failure.

A reset may temporarily clear the display, but Er:11 will return if the underlying communication fault has not been corrected. If the harness connection is loose, reseating it before resetting may resolve the issue permanently. If there is a damaged wire or a failed board, the error will reappear until the faulty component is repaired or replaced.