Ariston Oven Error Code ER17

ER17 is a heating timeout error indicating that the oven failed to reach its target temperature within 125 minutes of starting a heating cycle. The control board monitors cavity temperature throughout the cycle and triggers this fault when the setpoint is not achieved in time. It typically points to a problem with mains voltage, the heating element, the temperature sensor, or the power supply board.

Switching the oven off at the power outlet and restarting it may temporarily clear the ER17 code, but if the underlying fault is still present the error will return once the oven attempts to heat again and fails to reach temperature within 125 minutes. A reset is useful for confirming whether the fault is intermittent, but it does not address the root cause.

Repair costs vary depending on the faulty component. If only a wiring connection needs attention, costs may be relatively low, covering a service call and labor. Replacing a heating element or temperature sensor typically falls in a moderate range for parts and labor. A power supply board replacement is generally the most expensive repair for this fault. Expect total costs to range from around $80 to $350 or more depending on your location and the specific parts required.

Some diagnostic steps, such as checking whether your home's supply voltage is adequate or visually inspecting the heating element for visible damage, can be done by a knowledgeable DIYer. However, testing the sensor resistance, inspecting internal wiring, and replacing the power supply board involve working with mains voltage inside the appliance and carry a serious risk of electric shock. These steps are best handled by a qualified technician.

You should not continue using the oven while ER17 is active. The fault means the oven is not heating correctly, so food may not cook to a safe internal temperature. Additionally, the underlying electrical fault that caused the error could worsen with continued use. Stop using the oven and arrange for a diagnostic inspection before operating it again.