ASKO Dryer Error Code H7

H7 on an Asko gas dryer signals a gas valve defect or a blocked gas supply. The dryer's control system detected that the flame sensor remained in a short state after the gas valve was activated, meaning ignition did not succeed as expected. This fault is displayed only after five consecutive failed ignition attempts, so the dryer has already tried multiple times to resolve the issue on its own.

No, you should not continue operating the dryer while H7 is active. The error means the dryer has already failed to ignite five times, and running it further without resolving the root cause could be unsafe. Turn off the dryer and address the gas supply and valve issue before resuming use.

Repair costs vary depending on the failed component. If only the gas supply needed to be restored by opening a shutoff valve, there is no parts cost. A gas valve assembly replacement typically runs in the range of $150 to $350 including parts and labor. Igniter or flame sensor replacements are generally less expensive, often in the $80 to $200 range, but costs depend on local labor rates and part availability.

Some basic checks are safe for a homeowner, such as confirming the gas shutoff valve is fully open and verifying that other gas appliances in the home are working. However, testing or replacing the gas valve, flame sensor, or igniter involves working with gas components and electrical circuits, which is best handled by a qualified appliance technician. Attempting gas component repairs without proper training can create safety hazards.

Resetting the dryer may temporarily clear the displayed fault, but if the underlying cause such as a closed gas valve, defective gas valve assembly, or faulty flame sensor has not been corrected, the H7 code will return after the ignition sequence fails again five times. A reset alone does not fix the problem.