ASKO Dryer Error Code Sensor

The Sensor error on an Asko dryer indicates that the humidity sensor is not functioning correctly, is not properly installed in the fan housing, or is not communicating properly with the control unit. The dryer uses this sensor to monitor moisture levels during a drying cycle. When a fault is detected, the machine will automatically stop after 20 minutes to prevent improper operation.

The dryer is designed to stop after 20 minutes when this error is active, which limits its usefulness but also prevents extended operation with a faulty sensing system. It is best to address the underlying cause before continuing regular use, since a non-functional humidity sensor means the dryer cannot accurately control drying time and could result in over-drying or inefficient cycles.

If the fix is as simple as reseating the humidity sensor in the fan housing, there may be no parts cost at all. If the sensor needs replacement, parts and labor costs can range from around $80 to $200 or more depending on your location and service provider. Control unit replacement, if required in rare cases, would be the most expensive repair and could range from $200 to $400 or higher.

In many cases, yes. Start by opening the dryer door to see if the message clears on its own, which may indicate a false trigger from dry clothes at startup. If the error persists, inspect the humidity sensor in the fan housing to confirm it is properly seated and check that its wiring connections to the control unit are secure. If the sensor itself has failed, replacing it is a repair that a confident DIYer or technician can perform.

A simple reset may temporarily clear the error display, but if the humidity sensor is improperly installed or faulty, the code will return once a cycle is started. The error will only stay resolved once the physical cause, whether a loose sensor, a wiring issue, or a failed component, has been corrected.