Frigidaire Dryer Error Code E42 — Door Switch Error
What this means
Error code E42 indicates the door switch is not registering a closed door. The dryer will not start or will stop mid-cycle if the control board cannot confirm the door is shut. This can be a faulty switch, a misaligned door latch, or a wiring problem.
Step-by-step fix
4 stepsInspect the door latch
Open and close the door, listening for a firm click. Check the latch and strike for damage or misalignment.
A sagging door can cause the latch to miss the strike — check the hinge pins.
Test the door switch
Unplug the dryer, remove the top panel, and locate the door switch. Use a multimeter to test for continuity when the switch is pressed.
The switch should show continuity (0 ohms) when pressed and open (OL) when released.
Check wiring connections
Inspect the wiring from the door switch to the control board for loose or damaged connections.
Wiggle each connector while testing continuity to find intermittent breaks.
Replace the door switch
If the switch fails the continuity test, unclip the old switch and install the replacement.
Door switches are inexpensive and easy to replace — press the new one into the same mounting bracket.
When to call a professional
If the door switch and wiring test fine, the control board may have a faulty input circuit.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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