ASKO Dryer Error Code H8

H8 on an Asko gas dryer indicates a problem with the igniter or flame detector circuit. The flame detector is required to open its circuit within 120 seconds of the igniter activating, and if it remains shorted, the system logs a fault. The error code appears on the display after 5 consecutive failed ignition attempts, confirming the fault is persistent rather than a one-time occurrence.

No, you should not continue using the dryer when H8 is active. The error means the ignition system is not functioning correctly, so the dryer may not be producing heat or may be attempting repeated ignition cycles without successfully lighting the burner. Continued use without resolving the fault could pose a safety risk and may cause additional component damage.

A power reset may temporarily clear the H8 display, but the error will return if the underlying fault has not been fixed. The control board only shows H8 after 5 failed ignition attempts, so resetting and running the dryer again will simply repeat those attempts and re-trigger the code if the igniter or flame detector is still defective. The root cause must be diagnosed and repaired to permanently resolve the fault.

Some parts of the diagnosis, such as inspecting wiring and reseating connectors, are accessible to a knowledgeable DIYer. However, working on gas appliance ignition components involves risk and requires familiarity with gas safety procedures. Replacing the igniter or flame detector is a moderate repair, but if you are not comfortable working around gas systems, a qualified technician should handle it.

Repair costs vary depending on which component has failed. A replacement igniter typically costs in the range of $20 to $60 for the part, while a flame detector can run $15 to $50. Adding labor from a technician, total repair costs generally fall between $100 and $250, depending on your location and the specific parts required.