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Error code reference

Speed Queen Washer Error Code EC:29

Diagnostic test memory test failure indicating faulty card reader.

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What the EC:29 error code actually means

Your Speed Queen washer ran a self-check and found a problem with the card reader, the part that reads laundry cards used to pay for and start wash cycles. The card reader is not working correctly and will likely need to be replaced before the machine can operate normally again. This is not a problem you can fix by simply unplugging and restarting the machine.

Diagnostic procedure

The full EC:29 procedure

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1
First diagnostic step
Replace card reader.
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 EC:29

Ranked by how often they cause this code
  1. 1Failed card reader unit
  2. 2Loose or damaged wiring connection
  3. 3Moisture or corrosion damage to card reader
  4. 4Corrupted card reader firmware
  5. 5Vibration-induced internal damage

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Questions people ask about EC:29

What does EC:29 mean on a Speed Queen washer?
EC:29 means the washer's internal diagnostic test detected a memory test failure tied to the card reader. The card reader is the component that reads laundry cards used to authorize and pay for wash cycles. The machine's self-check routine found that the card reader is not functioning correctly. This error code is logged when the card reader fails to pass the memory test during the diagnostic sequence.
Will resetting the washer clear the EC:29 error?
In most cases, resetting the washer will not permanently clear EC:29 because the error is caused by a hardware failure in the card reader, not a temporary software glitch. The diagnostic test will detect the same fault on the next cycle and re-log the error. A reset may temporarily clear the code, but the underlying problem must be corrected to resolve it.
How much does it cost to fix a Speed Queen washer showing EC:29?
The cost depends on whether the repair requires only a wiring fix or a full card reader replacement. Card reader replacement parts and labor for a commercial Speed Queen washer typically range from around $100 to $350 or more depending on the specific model and local labor rates. Getting a quote from a certified technician before proceeding is recommended.
Can I fix EC:29 on my Speed Queen washer myself?
A technician or experienced DIYer can start by inspecting the wiring harness and connector between the card reader and the control board for loose or corroded pins. If the connections are secure and intact, the card reader itself will need to be replaced. Replacement of the card reader is the primary repair step recommended for this error code.
Is it safe to use my Speed Queen washer when EC:29 is displayed?
EC:29 relates specifically to the card reader and does not indicate a hazardous mechanical or electrical failure in the wash system itself. However, the machine may not allow cycles to start if the card reader is required to authorize operation. It is best to have the card reader inspected and replaced before continuing regular use.

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