ASKO Dryer Error Code F29

F29 on an Asko heat pump dryer indicates that the evaporator filter assembly (consisting of a net filter and a foam filter) or the evaporator coil itself is clogged. This restricts airflow through the heat pump circuit, causing the dryer to fault. The code is specific to Asko heat pump models and is most often caused by infrequent cleaning of the evaporator filters.

A simple reset is unlikely to permanently clear the F29 error if the underlying blockage has not been addressed. The dryer may restart briefly, but the fault will typically return once the system detects the same restricted airflow condition. The evaporator filters and evaporator coil must be cleaned before the error will resolve.

If the F29 error is resolved by cleaning the evaporator filters and coil, the repair costs nothing beyond your time. If a damaged foam filter needs replacement, filter parts typically cost in the range of a few dollars to around $20 to $40 depending on the part. If a technician visit is required to diagnose a persistent fault after cleaning, service call fees and labor can range from $75 to $200 or more depending on your location and the extent of the repair needed.

Start by locating and removing both the net filter and the foam filter from the evaporator compartment and cleaning them thoroughly. If the filters appear clean, inspect the evaporator coil fins for embedded lint and carefully remove any buildup. Once everything is cleaned and the filters are properly reinstalled, run a test cycle to see if the error clears.

Continuing to run the dryer with an active F29 error is not recommended. A clogged evaporator filter restricts airflow through the heat pump system, which can reduce drying efficiency, put additional strain on the heat pump components, and potentially lead to more serious damage over time. Address the blockage before resuming normal use.