Samsung Dryer Error Code Et
Communication error — connection between boards
The most common cause of the Et error on a Samsung dryer is wiring harness connector loose between boards (~55% of cases); start with: power cycle.
What Does Error Code Et Mean on a Samsung Dryer?
Communication error — connection between boards.
Et fires when the main control board loses reliable serial communication with the sub-control or display board over the interconnecting harness. The main board expects periodic handshake data; when responses are missing, corrupted, or timed out, it flags Et. Unlike a component-level sensor fault, this is a board-to-board link failure, so it commonly appears as unresponsive buttons or garbled display while the drum may still power up. It differs from bC2, which points more specifically at button/keypad-level faults.
What Causes Error Code Et?
Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:
- 1 Wiring harness connector loose between boards 55% of cases
- 2 Sub-board failure 30% of cases
- 3 Main control board communication circuit failure 15% of cases
How to Fix Samsung Dryer Error Code Et
- 1
Power cycle
Unplug 10 minutes and restart. Communication errors sometimes clear.
- 2
Inspect wire harness connections
Access the control board area and check all multi-pin connectors for secure seating.
- 3
Replace the sub-board
The sub-board (user interface board) is typically cheaper than the main board.
🔩 Samsung dryer sub-board ($50–$150) - 4
Replace main control board
If sub-board replacement doesn't help.
🔩 Samsung dryer control board ($100–$280)
How to Reset Error Code Et
Unplug 10 minutes. If Et returns, check all wiring connections before replacing boards.
Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.
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When to Call a Professional
Et diagnoses require working through both boards systematically.
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Frequently Asked Questions
Can I keep using my Samsung Dryer when error Et appears? +
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Et keeps coming back after a reset — what should I check next? +
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Sources & References
- • Samsung Support — Error Codes — official manufacturer documentation
- • Our editorial & verification policy
Content verified against manufacturer service documentation. Last verified: June 10, 2026.