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Appliance Fix Guide

Electrolux dryer error code

Electrolux dryer Error C9

Communication error between the main board and the UI board.

Communication error between the main board and the UI board.

Updated Aug 18, 2026
❌ CONSIDER REPLACINGParts over $250
Electrolux dryer repair guide for error C9
Error codeC9dryer

Try these first

Start here before buying a part or taking the appliance apart.

  1. 1
    Check 1

    Turn the dryer off and unplug it for 5-10 minutes to reset the electronics.

  2. 2
    Check 2

    Inspect the wire connections between the main control board and the user interface board for security and damage.

  3. 3
    Check 3

    Check the entire dryer vent system for lint buildup or obstructions, from the lint trap to the exterior vent cap.

A quick explanation

What does C9 mean?

Communication error between the main board and the UI board.

The answer you came for

How to fix Electrolux dryer error C9

Start with the safest checks and work from simple to technical.

  1. 1

    Step 1

    1. First, perform a hard reset by unplugging the dryer from the power outlet for at least 10 minutes. Then, plug it back in and see if the error clears.

  2. 2

    Step 2

    2. If the error persists, disconnect the dryer from power again.

  3. 3

    Step 3

    3. Remove the top panel of the dryer by taking out the screws at the back.

  4. 4

    Step 4

    4. Locate the main control board and the user interface (UI) board. Carefully check the wire harness that connects the two boards. Unplug and securely reconnect it to ensure a firm connection.

  5. 5

    Step 5

    5. If the connection is secure and the error remains, the user interface board (Part 5304521373) is the most likely component to have failed. Carefully disconnect the wires and remove the old board to install the new one.

  6. 6

    Step 6

    6. If replacing the UI board does not solve the issue, the main control board (Part 134557200NH) will need to be replaced.

  7. 7

    Step 7

    7. After replacing the faulty board, reassemble the dryer, restore power, and test its operation.

Read the additional checks from the current guide

How to Fix C9 Error (Step-by-Step) First, perform a hard reset by unplugging the dryer from the power outlet for at least 10 minutes. Then, plug it back in and see if the error clears.If the error persists, disconnect the dryer from power again.Remove the top panel of the dryer by taking out the screws at the back.Locate the main control board and the user interface (UI) board. Carefully check the wire harness that connects the two boards. Unplug and securely reconnect it to ensure a firm connection.If the connection is secure and the error remains, the user interface board (Part 5304521373) is the most likely component to have failed. Carefully disconnect the wires and remove the old board to install the new one.If replacing the UI board does not solve the issue, the main control board (Part 134557200NH) will need to be replaced.After replacing the faulty board, reassemble the dryer, restore power, and test its operation.Turn the appliance off, wait about 2 minutes, then turn it back on.

What to Check Next on This Electrolux Dryer Focused repair path: dryer airflow, heating, motor, sensor, and control checks. Do not treat the fault as reset-only if it keeps returning; use the failed function to choose the next test. Disconnect power before opening panels, then confirm whether the Electrolux dryer repeats the same code after a clean reset. Match the symptom to the part of the cycle or function that fails: fill, drain, heat, cool, spin, latch, ignite, fan, sensor, or control response. Inspect simple causes first: airflow, water supply, drain path, door closure, filter, venting, wiring connectors, and visible damage. Use meter testing or service diagnostics before replacing electronic controls, because wiring, switches, sensors, and loads can mimic board failure. Use the complete Electrolux dryer model number from the appliance tag before ordering any model-specific part. Check, inspect, clean, test, measure, remove, reconnect, clear, and replace parts only when the symptom supports that path. If these checks point toward a part, verify the complete Electrolux model number from the appliance tag before ordering. &tag=appliancefixg-20

If the code comes back

Do not keep replacing parts based only on the code. Repeat the safe checks above. If the fault remains, stop and arrange qualified service rather than ordering from the code alone.

What may be causing it?

  • Main control board failure
  • User interface board failure
  • Loose wiring connections
  • Severely restricted exhaust vent

These are possibilities to investigate, not proof that one part has failed.

Recommended part

Recommended part for this error code

Replacement part

OEM candidate: 134557200NH

Price noted in the current guide: $210-$410

Why this part is shown: It is associated with Electrolux dryer error C9 in the current guide. The error code alone does not prove this part has failed.

Compatibility varies by model. Confirm that the Amazon listing includes your complete dryer model number before ordering.

Amazon part link View recommended part on Amazon

You can open the recommendation now. Check model compatibility on the Amazon page before purchasing.

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Replacement options

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If repairing this dryer no longer feels worthwhile, compare three replacement paths below.

Why shop your replacement on Amazon?

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  • Convenient delivery options

    Select large appliances may offer scheduled or Room of Choice delivery.

  • Haul-away options

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  • Installation help

    Installation or assembly may be available on select items.

Delivery and service options, fees, and availability vary by item, seller, and delivery ZIP code. Confirm available services at Amazon checkout.

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Make the money decision

Repair or replace calculator

Use the age and total repair estimate to get a simple comparison. This is guidance, not a guarantee.

Safety first

Disconnect power before opening panels or touching internal parts.

When to stop
  • Stop if you see burned wiring, melted connectors, water near electrical parts, or a gas smell.
  • Do not perform live-voltage testing unless you are trained and equipped for it.
  • Use the exact model manual or service information before replacing electronic controls.

Free quick sheet

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Reviewed by the Appliance Fix Guide Editorial Team

Last reviewed and updated Jun 22, 2026 · Educational repair guidance, not a professional diagnosis

  • Researched against manufacturer documentation and service literature where available.
  • Safety-first structure: every guide starts with the safest first action and states when to stop and call a professional.
  • Part compatibility is treated cautiously: fitment must be confirmed against the exact model number before purchase.