GE Microwave Error Code SHORTED STEAM SENSOR

This error means the humidity sensor circuit inside your GE microwave has developed a short condition. The microwave uses this sensor to monitor moisture levels and automatically adjust cooking during sensor cook programs. GE's built-in quick test, accessed by holding pads 7 and 8 simultaneously, returns a diagnostic number below 6 when the sensor circuit is shorted, pointing to either a failed humidity sensor or a faulty smart board.

Standard microwave heating functions may still operate while this error is present, but sensor cook programs that rely on the humidity sensor will not function correctly and may stop mid-cycle. Continuing to use the microwave in sensor cook mode with a shorted sensor can lead to undercooked or overcooked food. It is best to avoid sensor-based cooking programs until the fault is resolved.

A power reset by unplugging the microwave or tripping the circuit breaker will temporarily clear the displayed error, but the underlying short in the humidity sensor circuit will remain. The error will return as soon as the control board runs its sensor diagnostic again or a sensor cook cycle is attempted. A lasting repair requires replacing the shorted component identified through the pad 7 and 8 quick test.

A confident DIYer can perform the pad 7 and 8 quick test to confirm the fault and identify whether the sensor or the control board is responsible. Replacing the humidity sensor is a relatively straightforward repair if you are comfortable working inside a microwave and have confirmed the part number. However, microwave capacitors retain a lethal charge even when unplugged, so the high-voltage capacitor must be safely discharged before any internal work is performed.

If only the humidity sensor needs replacement, parts and labor typically range from around $75 to $175 depending on the model and local labor rates. If the smart board is the shorted component, the repair cost rises significantly, often falling in the range of $150 to $350 or more for parts and labor. For older or lower-cost microwave models, it is worth comparing the repair estimate against the cost of a replacement unit.