Hotpoint Cooktop Error Code F16

F16 indicates that the ISI UART 2 channel (connector CN 04) has detected an excessively high temperature on the large induction coil. The cooktop shuts down the affected zone to prevent component damage. The fault can be caused by a genuine overheat condition or by a miscalibrated NTC temperature sensor reporting a false high reading. A technician will need to evaluate both the sensor and the cooktop's cooling system to determine the true cause.

No, you should not attempt to bypass or ignore the F16 fault and continue cooking. The code indicates a potential thermal fault on the large induction coil, and operating with an unresolved overheat condition or faulty temperature sensor could cause permanent damage to the inverter circuitry or, in the case of a genuine overheat, create a safety risk. The cooktop should remain out of service until the fault is diagnosed and corrected.

Repair costs vary depending on the root cause. Replacing an NTC thermistor is generally the least expensive fix, typically falling in the range of $50 to $150 including parts and labor. A control board replacement is the most costly scenario, often ranging from $200 to $400 or more depending on the specific model and labor rates in your area. Getting a diagnostic assessment first will help clarify which component is at fault before committing to a repair.

Some basic checks, such as clearing blocked ventilation slots or confirming the cooling fan is running, can be done without special tools. However, accurately diagnosing a miscalibrated NTC thermistor requires measuring resistance values and comparing them against a reference curve, which typically requires a multimeter and technical knowledge. Connector inspection at CN 04 and any board-level repairs should be handled by a qualified appliance technician.

A power reset may temporarily clear the displayed code, but if the underlying cause, such as a faulty NTC thermistor, a wiring fault, or a blocked cooling path, has not been resolved, the F16 error will return as soon as the cooktop attempts to operate the large coil again. Resetting without diagnosing the root cause is not a lasting fix.