Frigidaire Dryer Error Code E42

E42 on a Frigidaire dryer indicates a door sensing failure caused by a defective electronic control board. This code applies specifically to push button model dryers. The control board is unable to correctly process the door status signal, which causes the dryer to stop operating as a safety precaution.

A reset, typically done by unplugging the dryer for a few minutes and restoring power, may temporarily clear the code, but it will return if the control board is genuinely defective. Because E42 points to an internal board failure rather than a soft error, a reset alone is not a fix. The underlying hardware issue must be addressed to resolve the fault permanently.

The cost depends on whether you do the repair yourself or hire a technician. A replacement electronic control board typically ranges from roughly 80 to 200 dollars or more depending on the specific model. If you use a professional repair service, expect to add labor costs in the range of 100 to 200 dollars on top of the part price. Getting a diagnostic visit estimate first can help you decide whether repair or replacement is the better value for your situation.

A knowledgeable DIYer can attempt this repair by first checking that all wiring harness connectors to the control board are fully seated and undamaged. If the connections are secure and the error persists, the control board will need to be replaced, which requires basic disassembly skills and comfort working with electrical components. If you are not comfortable working inside an appliance, a qualified technician is the safer choice.

It is not advisable to continue using the dryer while E42 is active. The error means the control board cannot reliably determine the door position, which is a core safety function. Running a dryer without proper door status monitoring creates a risk of the drum operating with the door open. The dryer should remain off until the board is inspected and replaced if needed.