LG Dryer Door Latch and Switch Replacement

Which Part Failed#

Catch or Switch — the Quick Test#

The two failures do not overlap. If the door will not stay latched — it swings open and stops the cycle — the mechanical catch has broken or bent. If the door latches firmly but the dryer stays dead when you press start, the plunger door switch is not signaling the board. A multimeter confirms the switch: on continuity, pressing the plunger should make the circuit and releasing it should break it. A switch that will not toggle cleanly is the culprit.

Replacing the Catch#

The catch mounts on the inside face of the door with one or two Phillips screws or rivets. Open the door fully and remove the screws; if it is riveted, drill the rivets out with a 1/8 inch bit. Position the new catch and secure it with screws — replacement kits include screws even when the original was riveted — then close the door and confirm it clicks home firmly.

Replacing the Door Switch#

Disconnect power first. On most LG dryers you reach the switch by removing the top panel (two screws at the rear, then slide it back) and then the front panel. The switch sits near the door opening with a single wire-harness connector. Test it before swapping — disconnect the wires and check that the plunger toggles continuity — then release the one or two mounting screws, fit the new switch, and make sure its plunger lines up with the door mechanism when you refit the front panel.

WashTower Note#

On an LG WashTower the dryer door is at the top of the stacked unit. The catch is the same design, but the switch wiring runs through a longer harness, so reaching the switch means pulling the dryer's top panel off the tower — more awkward than a standalone dryer, but no harder mechanically. A Phillips #2, a flat-head for prying the catch, and a multimeter are the tools for either job.

Never Bypass the Switch#

If the catch breaks, do not tape the door shut to keep using the dryer. The door switch is a safety interlock meant to stop the drum the instant the door opens during tumbling, and taping the door defeats that protection, creating a burn and fire hazard. Replace the catch instead — it is a quick, inexpensive part.

How Long They Last#

Door catches last about 8-15 years depending on how gently the door is treated, while door switches last roughly 10-20 years because they see little mechanical travel. When either finally fails, the fix is a single inexpensive part and about a twenty-minute job. If your door gets slammed often, some aftermarket catch kits add a metal reinforcement plate, though the OEM reinforced-polymer catch holds up well under normal use. Closing the door with a gentle push rather than a slam is the simplest way to make both the catch and the switch reach the top of their range.