mypros+
Error code reference

Midea Washer Error Code E81

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.

MyPros+ Max

Get the full diagnostic procedure for E81.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What E81 means on a Midea washer

Error code E81 on a Midea washer indicates that the main PCB (printed circuit board) is not receiving any signal from the display PCB. These two boards communicate continuously during operation, and when that communication link breaks down, the unit cannot function. The washer is effectively locked out as a safety measure because the main control board has no way to confirm that user inputs or display feedback are being transmitted correctly.

The communication between the main PCB and display PCB typically runs through a wiring harness with a dedicated data or signal line. The most common point of failure is this wiring connection, which is why checking the wire connections between the two boards is the first diagnostic step. Connectors can work loose from vibration over time, wires can develop breaks inside their insulation, or corrosion can build up on connector pins and interrupt the signal path.

If wiring checks out and all connections are secure, the fault lies with one of the two boards themselves. Either the display PCB has failed and is no longer transmitting its signal, or the main PCB has failed and can no longer receive or interpret it. Distinguishing between the two boards typically requires substitution testing, since both boards will appear visually intact in most failure cases.

Source: manufacturer service documentation.

Common causes of E81

  1. 01

    Loose or disconnected wiring harness

    Wiring / connection

    The connector joining the main PCB and display PCB can vibrate loose over time. Inspect both ends of the harness for connectors that are partially unseated, and press them firmly back into place.

  2. 02

    Damaged or broken signal wire

    Part replacement

    A wire in the harness between the two boards may have an internal break or chafing damage, even if the outer insulation looks intact. Flex the wiring while checking for continuity to identify any intermittent breaks.

  3. 03

    Corroded connector pins

    Wiring / connection

    Moisture inside the cabinet can cause oxidation on the connector pins between the PCBs, raising resistance and interrupting the signal. Look for discoloration or white or green deposits on the connector contacts.

  4. 04

    Failed display PCB

    Part replacement

    If wiring and connectors are confirmed good, the display PCB itself may have failed and stopped transmitting its signal to the main board. Substitution with a known working display board is the most reliable way to confirm this.

  5. 05

    Failed main PCB

    Part replacement

    In less common cases the main PCB loses the ability to receive or process the signal from the display board. If replacing the display PCB does not resolve E81, the main control board is the likely culprit.

See the test procedure for each cause

Frequently asked questions about E81

What does E81 mean on a Midea washer?
E81 means the main PCB is not receiving a signal from the display PCB, and the washer will not operate until communication between the two boards is restored. The fault is most often caused by a loose, broken, or corroded wire connection in the harness between the two boards. In some cases one of the boards has failed and needs to be replaced.
Can I fix E81 on my Midea washer myself?
Checking and reseating the wire connections between the main PCB and display PCB is a straightforward task that many DIYers can handle after unplugging the machine. If the connectors are secure and the wiring shows no visible damage, diagnosing which board has failed requires substitution testing, which is more involved. Replacing either PCB is within reach for experienced DIYers, but if you are not comfortable working with circuit boards, a technician is a safer choice.
Is it safe to use my Midea washer when E81 is displayed?
No. The washer is designed to stop operation when E81 is active because the main control board cannot communicate with the display board. Attempting to force the machine to run in this condition is not recommended, and in practice the unit will not start until the fault is resolved.
Will resetting my Midea washer clear the E81 error?
A power reset, such as unplugging the washer for a minute and plugging it back in, may temporarily clear the code if the fault was caused by a transient communication glitch. However, if the underlying cause is a loose connector, damaged wire, or failed board, the E81 error will return. A reset should be treated as a first step to see if the problem is intermittent, not as a permanent fix.
How much does it cost to repair an E81 error on a Midea washer?
If the fix is simply reseating a loose connector, there is no parts cost involved. A replacement wiring harness or individual wire repair is generally a low-cost repair, typically in the range of a few dollars to around thirty dollars for parts. Replacing a display PCB or main PCB is more expensive, with parts costs commonly ranging from around forty dollars to over one hundred fifty dollars depending on the model, plus labor if a technician performs the work.

Related Midea washer codes

All Midea washer codes
View all 39 Midea washer codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass