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Error code reference

Midea Washer Error Code E80

Main PCB cannot get signal from display PCB; unit cannot work.

Midea codesMidea washer codes

Main PCB cannot get signal from display PCB; unit cannot work.

First step from the service manual

Check wire connections between main PCB and display PCB.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What E80 means on a Midea washer

The E80 error code on a Midea washer indicates that the main PCB (printed circuit board) is not receiving a signal from the display PCB. These two boards communicate continuously during operation, and when that communication link is interrupted or lost entirely, the washer shuts down and displays E80 to prevent operating in an uncontrolled state. This is a communication fault, not a mechanical failure, so the wash drum and motor are not necessarily damaged.

The communication between the main PCB and display PCB typically runs through a wiring harness connecting the two boards. Any break, loose connection, pinched wire, or corroded terminal in that harness can interrupt the data signal. In some cases, the fault lies with one of the boards themselves, either the display PCB failing to transmit or the main PCB failing to receive, but wiring issues are far more common and should always be ruled out first.

Because the main PCB cannot confirm that the display PCB is functioning, the unit is designed to halt all operations until the communication is restored. This is a protective design feature. Technicians should begin diagnosis by inspecting the wiring harness between the two boards, checking for secure connections at both ends, looking for visible wire damage, and testing continuity through the harness before condemning either board.

Source: manufacturer service documentation.

Common causes of E80

  1. 01

    Loose or disconnected wiring harness

    Wiring / connection

    The connector linking the main PCB and display PCB may have worked loose over time due to vibration. Inspect both ends of the harness for secure seating and re-seat any loose connectors.

  2. 02

    Damaged or broken wire in the harness

    Part replacement

    Wires in the harness can become pinched, frayed, or broken, especially where they route through tight spaces or near moving components. A continuity test on each wire in the harness will reveal any open circuits.

  3. 03

    Corroded or dirty connector terminals

    Wiring / connection

    Moisture inside the cabinet can cause terminal pins in the harness connectors to corrode, increasing resistance and blocking the signal. Inspect terminals visually and clean with electrical contact cleaner if corrosion is present.

  4. 04

    Faulty display PCB

    Part replacement

    If the wiring harness checks out and connections are secure, the display PCB itself may have failed and is no longer transmitting a signal. Replacing the display PCB is the next step after ruling out wiring issues.

  5. 05

    Faulty main PCB

    Part replacement

    Less commonly, the main PCB may have failed and is unable to receive the signal from the display PCB even when the display PCB and wiring are intact. This is typically diagnosed after all other components have been confirmed functional.

See the test procedure for each cause

Frequently asked questions about E80

What does E80 mean on a Midea washer?
E80 means the main control board is not receiving a communication signal from the display board. The washer is designed to stop all operation when this link is broken. The fault is most often caused by a loose connector or damaged wiring between the two boards. A technician will need to inspect the wiring harness and boards to diagnose the root cause.
Can I fix the E80 error on my Midea washer myself?
If you are comfortable working around electronics and disconnected power, you can check whether the wire harness connectors between the main PCB and display PCB are loose and re-seat them. However, testing for broken wires or diagnosing a faulty board requires basic electrical tools and some technical knowledge. If reseating the connectors does not resolve the error, a qualified technician should handle further diagnosis.
Is it safe to use my Midea washer when E80 is displayed?
No. The E80 error code prevents the washer from operating at all, which is intentional. The machine will not start a cycle while this fault is active, so there is no risk of the washer running unsafely. Do not attempt to bypass the error code to force the machine to run.
Will resetting my Midea washer clear the E80 error?
A simple power reset, such as unplugging the washer for a few minutes, may temporarily clear the display, but the E80 error will return if the underlying wiring or board fault has not been corrected. A reset alone is not a fix for this fault code. The communication problem between the two boards must be diagnosed and repaired to resolve it permanently.
How much does it cost to repair an E80 error on a Midea washer?
Repair costs depend on what is causing the fault. If the fix is simply reseating a loose connector, labor costs may be minimal, typically in the range of $50 to $100 for a service visit. Replacing a display PCB or main PCB will add parts costs, which can range from $80 to $250 or more depending on the specific board needed. Getting a diagnosis before authorizing parts replacement is recommended.

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