LG Dryer Error Code OE — What It Means & How to Fix It

What Does This Error Mean?

Error code OE on an LG dryer means a fault has been detected with the outlet thermistor — the sensor that measures the temperature of the air leaving the drum. This sensor helps the dryer know when clothes are dry and when to stop the heat. With an OE error, the dryer cannot read the outlet temperature and may stop mid-cycle. This is most often caused by a failed thermistor, a loose connector, or a blocked vent.

Affected Models

LG Front-Load Dryers
LG DLE series electric dryers
LG DLG series gas dryers
LG DLGX series
LG DLEX series steam dryers

Common Causes

A failed outlet thermistor reading outside its expected range
A disconnected or corroded wire connector at the outlet thermistor
A blocked exhaust duct causing abnormal outlet temperatures
A damaged thermistor from physical contact during a service or move
A faulty main control board that cannot process the thermistor signal

How to Fix It

Unplug the dryer and wait 5 minutes. Plug it back in and run a short test cycle. If the OE code was triggered by a momentary temperature spike, a reset will clear it.

If OE returns on the first or second cycle after the reset, a component needs to be tested.
Check the exhaust vent for blockages. A restricted vent causes hot air to back up inside the dryer, which can push the outlet temperature out of range. Disconnect the vent hose and clean the full duct run from the dryer to the outside.

An obstructed vent also causes clothes to take much longer to dry and can lead to more serious overheating codes.
Access the inside of the dryer cabinet by removing the rear panel. Locate the outlet thermistor — it is usually positioned in the exhaust duct near where air exits the drum. Check the wire connector and make sure it is fully and firmly seated.

The outlet thermistor is typically smaller and positioned closer to the exhaust exit than the high-limit thermostat.
Test the outlet thermistor with a multimeter. At room temperature (70°F / 21°C), a good thermistor reads approximately 10,000-15,000 ohms. Outside this range — including an open (infinity) or near-zero reading — indicates failure.

LG outlet thermistors are available online for $10-$25. Always match the part number.
If the thermistor and vent are both fine, suspect the main control board. A technician can use diagnostic mode to check sensor readings on the control board and determine if the board is misinterpreting the thermistor signal.

Control board replacement is $150-$350 and should be confirmed faulty before purchase.

When to Call a Professional

If cleaning the vent and resetting the dryer does not clear OE, the outlet thermistor likely needs replacement. It is an inexpensive part ($10-$25) and reasonably accessible in most LG dryer models. If the thermistor tests fine, a control board issue should be confirmed by a technician before replacing the board.

Frequently Asked Questions

What is the difference between OE and the tE codes?

Both OE and tE codes indicate thermistor faults, but they refer to different sensors. OE specifically refers to the outlet thermistor — the sensor measuring the temperature of air leaving the drum. tE1 and tE2 refer to inlet and outlet thermistors on different models. tE3 refers to the drum thermistor. Each sensor sits in a different location and has a slightly different job.

Can I use my LG dryer while it shows OE?

No — the dryer will stop the cycle or not start when OE is active. Even if you could force it to run, without the outlet thermistor the dryer cannot regulate heat correctly. This risks overheating and potential damage to clothes or the dryer itself. Fix the fault before running another load.

How much does it cost to fix an OE error on an LG dryer?

Cleaning the vent duct: free to $150 for a professional cleaning service. A replacement outlet thermistor: $10-$25. A technician service call: $100-$200 for a standard repair. Control board replacement: $150-$350 if that is confirmed as the fault.