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Error code reference

Samsung Washer Error Code AE2

Communication check between the I/O Board

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What the AE2 error code actually means

Your Samsung washer is displaying AE2 because two internal circuit boards have stopped communicating with each other properly. Think of it as the washer's control system losing its connection to the panel that reads your button inputs. The washer shuts down to protect itself until the connection issue is resolved.

Diagnostic procedure

The full AE2 procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check the connector connections carefully for incorrect or loose connections.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of AE2

Ranked by how often they cause this code
  1. 1Loose or disconnected wiring harness connector
  2. 2Damaged wiring harness
  3. 3Faulty I/O board
  4. 4Faulty main control board

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Questions people ask about AE2

What does AE2 mean on a Samsung washer?
The AE2 code on a Samsung washer indicates a communication error between the main control board and the I/O board. The I/O board handles input and output signals between the control system and the user interface components. When that communication link breaks down, the washer detects the fault and displays AE2 to alert you that service is needed.
Will resetting my Samsung washer clear the AE2 error?
A reset by unplugging the washer for several minutes may temporarily clear the AE2 code, but the error will return if the underlying cause is not addressed. If the communication problem is due to a loose connector, reseating it before powering the machine back on may resolve it permanently. A reset alone will not fix a damaged wire or a failed board.
How much does it cost to repair an AE2 error on a Samsung washer?
Repair costs vary depending on what component is at fault. If the fix is simply reseating a connector, there may be no parts cost involved, though a service call fee may apply if a technician is needed. Replacing a wiring harness typically runs in the range of $50 to $150 in parts. An I/O board or main control board replacement can cost anywhere from $100 to $350 or more depending on the specific model and labor rates in your area.
How do I fix the AE2 error on my Samsung washer?
Start by unplugging the washer and checking all wiring harness connectors between the main control board and the I/O board for loose or improperly seated connections. Reseat any connectors that are not fully locked in place. If the error returns after reconnecting power, inspect the wiring harness for damage. Persistent errors after those steps typically require replacing the I/O board or the main control board.
Is it safe to use my Samsung washer when it shows AE2?
You should not continue operating the washer while the AE2 error is active. The code indicates that the control system cannot reliably communicate with the I/O board, which means the washer may not respond correctly to commands or safety signals. Running the machine in this state could lead to unpredictable behavior or further component damage.

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