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Error code reference

LG Dryer Error Code Cd

Disconnection of card reader wire.

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What the Cd error code actually means

The Cd error on your LG dryer means the dryer has detected that the wiring connected to its card reader is not properly connected or has been damaged. This is most common on commercial LG dryers that accept payment cards. A technician will need to inspect and reseat or repair the wiring to clear this error.

Diagnostic procedure

The full Cd procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check the card reader wire.
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 Cd

Ranked by how often they cause this code
  1. 1Loose or disconnected wire connector
  2. 2Damaged wiring harness
  3. 3Corroded or dirty terminal connections
  4. 4Faulty card reader module

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Questions people ask about Cd

What does Cd mean on a LG dryer?
The Cd code on an LG dryer indicates a disconnection in the card reader wire circuit. It means the control board is not detecting a proper electrical connection to the card reader module. This code is typically found on commercial LG dryer models equipped with a card payment system. A technician should inspect the card reader wiring harness to identify the source of the disconnection.
Is it safe to run my LG dryer while the Cd error is showing?
The Cd code indicates a wiring fault in the card reader circuit, which is a payment and communication component rather than a core heating or safety system. However, continuing to operate the dryer without addressing the fault is not recommended, as underlying wiring issues could worsen over time. It is best to have the wiring inspected before returning the unit to regular service.
How much does it cost to repair a Cd error on an LG dryer?
Repair costs depend on whether the fix involves simply reseating a loose connector, which may only require a service call fee in the range of $75 to $150, or replacing damaged wiring or the card reader module itself, which could bring total costs to $150 to $400 or more depending on parts and labor rates in your area. Commercial dryer repairs can run higher due to part availability and the specialized nature of card reader components.
How do I fix the Cd error on my LG dryer?
Start by locating the card reader wiring harness and tracing it from the card reader module to the control board connector. Check that all connectors are fully seated and free of corrosion or damage. If the wiring is damaged, the harness will need to be repaired or replaced. If the wiring is intact but the error persists, the card reader module may need to be replaced.
Will resetting my LG dryer clear the Cd error code?
A basic power reset is unlikely to permanently clear the Cd error because it is triggered by a physical wiring disconnection that the control board detects on startup. The fault will typically return as soon as the dryer powers on and checks the card reader circuit. The underlying wiring issue must be corrected before the error will stay cleared.

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