Thermador Cooktop Error Code E0722

E0722 indicates that the Active Light module, which is the cooktop's main electronic control assembly, has overheated. The cooktop automatically shuts off all hob zones when this happens to prevent damage to the electronics. It is a protective fault, not necessarily a sign of a failed component. Allowing the unit to cool down fully is the first step in resolving it.

No, you should stop using the cooktop immediately when E0722 appears. The cooktop will have already shut off the hob zones automatically as a safety measure. Continuing to attempt to operate the appliance before it has fully cooled could cause permanent damage to the Active Light module. Wait the full 20 to 30 minutes before restarting.

Repair costs vary depending on the root cause. If the fix is simply clearing blocked ventilation, there may be no parts cost and only a service call fee, which typically ranges from $75 to $150. If the internal cooling fan needs replacement, parts and labor combined often range from $150 to $350. Replacement of the Active Light module is the most expensive scenario, with total repair costs potentially ranging from $300 to $700 or more depending on the model and labor rates in your area.

Start by switching the cooktop off completely and allowing it to cool for 20 to 30 minutes. After the cooldown period, check that all ventilation openings around and beneath the cooktop are clear of grease, debris, and obstructions. If the error returns quickly after resuming use, the internal cooling fan or a temperature sensor may need inspection and replacement by a qualified technician.

Switching the appliance off and allowing a full 20 to 30 minute cooldown will often clear E0722 if the cause was a temporary thermal event such as heavy use or a brief ventilation issue. However, if the underlying cause is a failed cooling fan, a faulty sensor, or a damaged Active Light module, the error will return after reset. A reset alone is not a fix if a component has failed.