Whirlpool Washer Error Code 350

Code 350 means there is a communication fault between the user interface board and the main control board. These two boards must continuously exchange signals for the washer to operate. When that link fails or is interrupted, the machine stops and displays code 350. The cause can be a loose harness connection, damaged wiring, or a failed board.

A power reset may temporarily clear the display, but the code will return if the underlying communication fault is not corrected. If the harness connection is intermittently loose, a reset might restore operation briefly, but the fault will reappear once the connection is disrupted again. A proper repair of the harness or board is required for a lasting fix.

If the repair is only a harness reseat, the cost is minimal, just your time. If the wiring harness needs replacement, parts typically run in the range of $20 to $80 depending on the model. A replacement UI board generally costs between $80 and $200, while a main control board can range from $100 to $300 or more. Professional labor adds $100 to $200 on top of parts in most markets.

Yes, in many cases. Start by unplugging the washer, then locate and firmly reseat the wiring harness connectors between the UI board and the main control board. Check for corroded or bent pins while you have the connectors apart. If reseating the harness does not resolve the error, board replacement becomes necessary and the repair becomes more involved.

The washer will generally not complete a cycle while code 350 is active because the control boards cannot coordinate machine functions. Attempting to force operation is not recommended. Address the communication fault before resuming use to avoid incomplete cycles or uncontrolled operation.