E15
LG Dryer
Severity: ModerateWhat Does This Error Mean?
The E15 error on an LG dryer indicates a problem with the drum temperature thermistor — specifically that the sensor is reading a temperature that is too high or is outside the expected range. The dryer stops the cycle to prevent overheating of the drum and your clothes.
Affected Models
- DLGX5501V
- DLE7300VE
- DLHC1455V
- DLEX3900B
- Most LG electric and gas dryers
Common Causes
- Drum thermistor has failed and is sending a false high-temperature reading
- Exhaust vent is blocked, causing real overheating that triggers the sensor
- Heating element is stuck on and not cycling off correctly
- Thermal fuse has blown but the thermistor is still reading residual heat
- Wiring to the drum thermistor is damaged, causing a short or open circuit
How to Fix It
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Unplug the dryer immediately and allow it to cool down for 30 minutes.
If the dryer was genuinely overheating, allow everything to cool before touching it.
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Clean the lint filter and check the exhaust vent duct.
A blocked vent is the most common cause of genuine overheating. Disconnect the duct from the back and clear any lint clogs.
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Check the exterior vent cap for obstructions.
Make sure the vent flap opens freely. A blocked exterior vent is very common and easy to miss.
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Plug the dryer back in and run a short air-only cycle (no heat) to test the drum rotation.
If the dryer runs normally on air-only but E15 returns when heat is selected, the heating element or thermistor is the issue.
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If E15 returns immediately or the dryer smells hot, call a technician.
Do not continue running a dryer that repeatedly overheats — it is a fire risk. A technician should test the thermistor, heating element, and thermal fuse.
When to Call a Professional
If vent cleaning and a power reset do not clear E15, the thermistor or heating element needs professional testing. A failed heating element that stays on is a fire hazard. Call a technician promptly if you suspect the element is the issue. Expect repair costs of $100–$250.
Frequently Asked Questions
Is E15 dangerous on an LG dryer?
It can be — especially if the dryer is genuinely overheating rather than just having a faulty sensor. Overheating dryers are a leading cause of house fires. Do not dismiss E15 as a minor glitch. Investigate the vent first, then call a technician if the error persists.
What is the drum thermistor and where is it located?
The drum thermistor is a small temperature-sensing probe mounted near the drum or in the airflow path inside the dryer. It monitors heat levels during the cycle and tells the control board when to cycle the heating element on and off. Its exact location varies by model.
Can I replace the drum thermistor myself?
The thermistor itself is inexpensive — usually $10–$25. Accessing it requires removing the dryer's back or front panel. If you are comfortable with basic appliance repair and have the correct part number, it is a DIY-friendly job. Otherwise, a technician can do it in 30–45 minutes.