Maytag Washer Error Code 28

Error code 28 means the control board detected that Rotary Switch 3, located to the left of the encoder, failed its startup check. The washer runs a self-test when powered on and will not proceed if it cannot get a valid signal from this switch. The fault points to the rotary switch itself, the encoder assembly, or the wiring connecting them to the control board.

Start by unplugging the washer and inspecting the wiring harness that connects the encoder assembly to the control board, looking for loose connectors, broken wires, or corrosion. If the harness is intact, the encoder assembly or its Rotary Switch 3 is the likely failed component and will need to be replaced. On most Maytag models, the encoder assembly is replaced as a unit. If replacing the encoder does not clear the code, the main control board may need evaluation.

Inspecting and reseating the wiring harness is accessible to most DIYers with basic tools and takes 15 to 30 minutes. Replacing the encoder assembly requires disassembling the control panel area, which is moderately involved but manageable with the model's service manual or a repair guide. If the main control board turns out to be the failed component, replacement is also DIY-capable but involves more careful handling of electrical components. Professional help is advisable if you are not comfortable working around control board circuitry.

No. Error code 28 triggers at startup and prevents the washer from initiating any cycle. The machine will not operate until the fault is cleared. Attempting repeated power cycles without addressing the underlying component failure will not resolve the issue and may not cause additional damage, but the washer will remain non-functional.

If the repair requires a new encoder assembly, parts typically range from $30 to $80 depending on the model. If you are doing the repair yourself, that is usually the total cost. A professional repair technician will add a service call fee and labor, bringing the total to roughly $100 to $200 in most markets. Main control board replacement, if needed, costs more, with parts alone often ranging from $100 to $250.