Ariston Cooktop Error Code E.22

E.22 on an Ariston cooktop means the keyboard temperature sensor has been detected in a short circuit condition. This sensor monitors the temperature of the keypad and control panel area. The cooktop disables itself when this fault is active to protect the control electronics from potential damage.

You should not attempt to use the cooktop while E.22 is active. The error indicates a fault in the sensor circuit that monitors keyboard temperature, and the cooktop's control system will typically prevent normal operation as a protective measure. Continuing to attempt use could risk further damage to the control electronics.

A simple power reset by switching off the circuit breaker and restoring power will not permanently clear E.22 if the underlying sensor short circuit is still present. The control board will detect the fault again as soon as it checks the sensor during startup. A lasting resolution requires physically repairing or replacing the faulty sensor or wiring before the error will remain cleared.

A knowledgeable DIYer with basic electronics skills can attempt diagnosis by inspecting the sensor wiring for visible damage and measuring the keyboard temperature sensor resistance with a multimeter. However, accessing the sensor typically requires disassembling the cooktop, and replacing the control board if that is the source of the fault is a more involved repair. If you are uncomfortable working with disassembled appliances, a qualified technician is recommended.

Repair costs depend on which component has failed. Replacing a keyboard temperature sensor typically costs less than replacing the full control board, with parts ranging from roughly $20 to $80 for a sensor and $100 to $300 or more for a control board depending on the model. Adding a technician's labor for diagnosis and repair can bring total costs to somewhere between $100 and $400 or more in many cases.