LG Dryer Error Code E24

E24 means the air flow switch did not turn ON during the pre-purge phase at the start of the drying cycle. The dryer checks for adequate airflow before heating begins, and if that airflow is not detected, the control board triggers E24 and stops the cycle. This is a safety function designed to prevent overheating. The root cause is typically a blocked exhaust path or a defective air flow switch.

No, you should not continue operating the dryer while E24 is active. The error indicates that airflow is insufficient, which creates a risk of overheating, excessive lint accumulation, and in serious cases, fire. The dryer is designed to stop the cycle when this condition is detected. Resolve the airflow issue before resuming use.

If the cause is a clogged vent or duct, the repair cost is minimal and often requires only cleaning supplies or a duct cleaning service, typically ranging from $75 to $175 for a professional duct cleaning. If the air flow switch needs replacement, parts and labor combined generally range from $100 to $250 depending on the technician's rates and part availability. Blower wheel or motor replacement, if required, will increase the cost to a range of $200 to $400 or more.

Start by cleaning the lint filter and inspecting the full length of the exhaust duct for kinks, blockages, or lint buildup. Check the exterior vent cap to confirm the flap opens freely and is not obstructed. If the exhaust path is completely clear and the error persists, the air flow switch will need to be tested for continuity and mechanical function, and replaced if found to be defective.

A power reset may temporarily clear the error display, but E24 will return if the underlying cause has not been corrected. If the exhaust duct is blocked or the air flow switch is faulty, the fault condition will be detected again at the start of the next pre-purge cycle. Clearing the code is only effective after the airflow restriction or component failure has been addressed.