Ariston Cooktop Error Code E.12

E.12 indicates that one or more touch keys on the cooktop control panel are out of action and not responding correctly. The cooktop displays this code when it detects a key is either unresponsive or registering a continuous false signal. Common triggers include surface contamination, moisture, or a hardware fault in the touch control assembly.

It is not recommended to continue cooking while E.12 is active. The error means one or more controls are not functioning reliably, which could result in unintended burner behavior or an inability to properly control heat levels. Power off the unit and diagnose the cause before resuming use.

If the fix is simply cleaning the surface, there is no parts cost involved. If a touch key PCB replacement is needed, parts and labor typically range from around 80 to 200 dollars depending on the specific model and service rates in your area. A main control board replacement is generally more expensive, often falling in the range of 150 to 350 dollars including labor.

In many cases, yes. Start by turning off the cooktop at the circuit breaker, cleaning the glass surface thoroughly with a dry cloth to remove any spills or residue, and then restoring power. If the error does not return, a surface contamination issue was likely the cause. If the error persists after cleaning and a full power reset, a hardware component such as the touch key PCB or control board may need professional inspection.

A power reset can clear E.12 if the underlying cause was temporary, such as moisture or a minor signal glitch. To reset, switch off the cooktop at the circuit breaker for at least 60 seconds before restoring power. If the code returns immediately or shortly after reset, the cause is likely a physical fault with the touch panel or control board that requires further diagnosis.