ASKO Dryer Error Code Clean Lint Filter

The Clean Lint Filter alert means the dryer has detected incorrect air circulation and temperature conditions during a drying cycle. This is most often caused by a clogged lint filter reducing airflow, but it can also result from blocked external venting, high ambient room temperature, or a heating element producing lower-than-normal output. The dryer uses this alert as a protective signal to prompt inspection before the issue affects drying performance or causes internal moisture damage.

A reset may temporarily clear the alert, but it will return if the underlying cause has not been addressed. The dryer's control system will continue monitoring air circulation and temperature on each cycle, and if conditions remain outside the expected range, the alert will reappear. Cleaning the lint filter and resolving any airflow restrictions is the correct approach rather than relying on a reset.

If the problem is simply a dirty lint filter or a blocked vent duct, the fix costs little to nothing beyond your time for cleaning. If the external ducting needs replacement, materials typically run in the range of $15 to $60 depending on the duct length and type. A heating element replacement, if that turns out to be the cause, generally costs between $80 and $200 for the part, plus labor if you use a technician.

Start by removing the lint filter and cleaning it thoroughly, then reinstall it and run a new cycle to see if the alert clears. If the alert returns, inspect the external vent duct for blockages or restrictions and confirm the room has adequate airflow around the dryer. If both of those check out, consider whether the installation area is unusually warm, and have the heating element tested if the problem persists.

Continuing to run the dryer with restricted airflow is not recommended, as it can reduce drying efficiency and may allow condensation to build up inside the unit over time. While this alert is not always an immediate safety emergency, ignoring it risks longer-term damage to internal components. Addressing the airflow issue promptly will protect both the dryer and the quality of your drying results.