GE Cooktop Error Code 1X3

The 1X3 code indicates that the control board is detecting an open circuit in the RTD temperature sensor for a specific surface element. The "X" digit identifies which element or sensor is affected. This means the board cannot read any resistance value from that sensor, which could be caused by a loose wire connection, a damaged heater ribbon, or a failed sensor.

It is not recommended to continue using the affected surface element while this fault is active. The temperature sensor is a safety component that helps the control board regulate heat levels. Operating without a functioning sensor could allow the element to run without proper thermal monitoring, creating a potential overheating hazard.

Resetting the cooktop by cutting power at the breaker for a minute or two may temporarily clear the code, but if the underlying fault is still present the code will return when the control board runs its diagnostics again. A reset is useful for confirming whether the fault is intermittent, such as from a connection that seats itself again, but a persistent 1X3 code requires physical inspection and repair of the sensor circuit.

A technician or experienced DIYer can start by powering the unit off and checking all wire harness and sensor connectors to make sure they are fully seated and undamaged. If connections look good, the heater ribbon and RTD sensor should be inspected and tested for continuity with a multimeter. Replacing a failed RTD sensor or harness is within reach for someone comfortable with appliance repair, but working near high-voltage components carries risk and should be approached with caution.

If the issue is simply a loose connector, there may be no parts cost at all. If an RTD sensor or wire harness assembly needs replacement, parts costs typically range from $20 to $80 depending on the specific model. Adding professional labor, total repair costs can range from $100 to $250 or more depending on your location and the technician's rates.