LG Dryer dE4 — Door switch circuit fault
LG Dryer · Error code dE4
What dE4 Means
dE4 is a more specific version of the door error — the control sees the door switch in an invalid state (e.g., open and closed simultaneously, or stuck open while a cycle is in progress). The dryer will not run until the switch reports cleanly.
Symptoms
- dE4 on display
- Door appears closed but error persists
- Cycle stops mid-run when door has not been opened
- Switch plunger does not click when door closes
Common Causes
Plunger or microswitch contacts failed.
Door hinge worn so the latch tongue does not fully engage the switch.
Wire broken at the switch terminals.
Board misreads a healthy switch.
How to Fix It
- Open and firmly close the door several times, listening for the switch click.
- Inspect the door strike/latch for damage and the hinges for sag.
- Unplug and remove the front panel or filter housing to access the door switch.
- Test the switch with a multimeter in both open and closed states; replace if it does not change continuity.
- Inspect the harness at the switch for broken wires or corroded terminals and repair as needed.
- Reassemble and confirm dE4 clears on door-close test.
Parts You May Need
If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.
More LG Dryer Codes
Verified against manufacturer documentation: lg.com
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.