Frigidaire Washer Error Code E42

The E42 error code on a Frigidaire washer indicates a lid lock device failure. This code is triggered when the control board cannot confirm that the lid lock mechanism has engaged or disengaged as commanded. The lid lock system is a safety-critical component that prevents the washer tub from spinning while the lid is open. When the control board sends a signal to lock the lid and does not receive a valid confirmation signal back within the expected time frame, it stores the E42 fault and halts operation.

The two primary failure points are the lid lock assembly itself and the main control board. The lid lock assembly contains an internal solenoid and a switch or sensor that confirms lock engagement. If the solenoid fails, the lock will not physically engage. If the confirmation switch fails, the lock may engage mechanically but the board still reads a fault. Physical obstructions around the lid lock, such as debris, detergent residue, or a warped lid, can also prevent the latch from seating correctly, which mimics an electrical failure.

Before replacing components, inspecting the lid and lid lock area for obstructions is the recommended first step. A blocked or misaligned lid lock mechanism is a common and inexpensive cause of E42. If the lock area is clear and the error persists, testing the lid lock assembly for continuity and correct voltage supply from the control board is the next logical step. If voltage is present at the lock but the assembly does not respond, the lid lock unit is the likely faulty component. If voltage is absent, the main control board may be defective.