Miele Dryer Error Code F78: How to Fix It

Q: Can I fix Miele error F78 myself?

Only if the issue is a clogged filter or faulty sensor. A true refrigerant leak requires a certified technician.

Q: How much does it cost to fix Miele error F78?

Professional repair costs typically range from $200 to $600, depending on the extent of the leak and if parts need replacement.

Q: Will resetting the dryer clear error F78?

You can try unplugging the dryer for 10 minutes, but if there's a real leak, the error will return immediately upon starting a cycle.

Q: Is it worth repairing a Miele dryer with F78?

Miele dryers are high-quality and often worth repairing if the compressor is still functional. If the compressor failed, replacement cost may approach a new dryer's price.

Q: What does F78 mean on a Miele dryer?

It indicates the heat pump system has a suspected refrigerant leak, causing poor drying performance.

Abstract

Error F78 on your Miele dryer means the control board has detected a potential refrigerant leak in the heat pump system. This is a serious issue because the dryer relies on refrigerant to dry clothes efficiently. Attempting to repair a refrigerant leak requires specialized equipment and certification, so most fixes are limited to diagnostic checks.