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Error C90 Stops machine US market

Samsung Dryer Error Code C90

C90 on a Samsung dryer usually means: The exhaust vent is more than ninety percent blocked. On a Samsung Dryer, code C90 points to the exhaust vent.

Fix it fast: Clean filter and vent. Full ranked steps below.

Likely part
exhaust vent
Fault type
ventilation
Manufacturer source Updated Oct 17, 2026 View source

How to fix C90 — ranked steps

Try these in order. Stop when the code clears.

  1. 1 Clean filter and vent

    Moderate
    • Clean the lint filter and the exhaust vent thoroughly — the vent is more than ninety percent blocked — then rerun the cycle.

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