Ariston Cooktop Error Code E.32

E.32 indicates that the RER cooking zone temperature sensor has been detected in a short circuit condition. The control board is reading an abnormally low resistance from that sensor circuit, which signals a fault. The cooktop disables the affected zone to prevent unsafe operation until the fault is resolved.

The cooktop should not be used while E.32 is active. The error indicates a sensor circuit fault that prevents proper temperature monitoring in the affected zone. Operating without functional temperature sensing creates a risk of overheating. Leave the unit unplugged until the fault has been diagnosed and repaired.

Repair costs vary depending on the root cause. Replacing the RER temperature sensor typically falls in the range of $80 to $200 including parts and labor. If the wiring harness requires repair or replacement, costs may be similar or higher. A control board replacement represents the most expensive scenario, often ranging from $200 to $400 or more depending on parts availability and labor rates in your area.

Some causes, such as a loose or contaminated connector, can be addressed by a knowledgeable DIYer who is comfortable working with disassembled appliances while the unit is unplugged. However, replacing the RER sensor or diagnosing a control board fault typically requires technical experience and proper test equipment like a multimeter. If you are not confident working with appliance wiring, a qualified technician is the safer choice.

A power reset may temporarily clear the displayed code, but the fault will return as soon as the control board polls the sensor circuit again and detects the short. Because the underlying electrical fault remains present, resetting the cooktop does not resolve the problem and is not a substitute for proper diagnosis and repair.