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Error code reference

Frigidaire Dryer Error Code E43

Control board fails to lock lid (washer).

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What the E43 error code actually means

This error means the machine's computer tried to lock the lid before starting a cycle but never got confirmation that the lock actually engaged. Until the lid locks properly, the appliance will not run for safety reasons. The problem is usually a faulty lid lock assembly, a wiring issue, or in some cases the control board itself.

Diagnostic procedure

The full E43 procedure

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1
First diagnostic step
Refer to test (6).
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 E43

Ranked by how often they cause this code
  1. 1Faulty lid lock assembly
  2. 2Damaged or disconnected wiring harness
  3. 3Failed lid lock switch
  4. 4Defective control board
  5. 5Obstruction preventing lid from closing fully

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Questions people ask about E43

What does E43 mean on a Frigidaire dryer?
E43 indicates the control board attempted to lock the lid but did not receive confirmation that the lock engaged successfully. The appliance stops the cycle and displays this code as a safety precaution. The fault can be caused by a bad lid lock assembly, wiring issues, or a defective control board. The recommended starting point for diagnosis is test (6) in the service diagnostic procedure.
Will resetting the appliance clear the E43 code?
A reset may temporarily clear the code, but if the underlying fault is still present the error will return as soon as the appliance tries to lock the lid again. Resetting is not a fix and should only be used to confirm whether the fault is intermittent. Proper diagnosis following test (6) is required to resolve the issue permanently.
How much does it cost to repair an E43 error code?
Repair costs depend on which component has failed. A lid lock assembly replacement typically falls in the range of $40 to $120 for the part, while a control board can range from $100 to $300 or more depending on availability. Adding a technician's labor, total repair costs generally range from $100 to $450. Diagnosing the fault with test (6) first ensures you replace only the component that has actually failed.
Can I fix E43 myself, or do I need a technician?
Some causes of E43, such as a loose wiring connector or a physical obstruction preventing the lid from closing, can be addressed by a knowledgeable DIYer. However, replacing the lid lock assembly or control board requires basic electrical testing skills and comfort working inside the appliance. If you are not familiar with continuity testing or reading wiring diagrams, having a technician perform the test (6) diagnostic sequence is the safer choice.
Is it safe to use the appliance while E43 is displayed?
No. The E43 code is a safety-related fault. The lid lock is designed to prevent access to moving parts during a cycle, and the appliance intentionally stops operation when the lock cannot be confirmed. Running the machine with a bypassed or non-functional lid lock creates a safety hazard and should be avoided until the fault is repaired.

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