LG Microwave Error Code E-32

E-32 on an LG microwave indicates a weight sensor short error. The error activates when the sensor's output value stays below a HEX 14 threshold for 30 continuous seconds during operation. This tells the control board that the sensor circuit is producing an abnormally low signal consistent with a short condition. The problem typically involves the sensor itself, its connecting wiring, or the connector at the PCB.

The E-32 fault disables the weight sensor, which means automatic weight-based cooking programs will not function correctly. Basic microwave functions may still operate depending on how the unit handles the fault, but relying on the microwave while an active sensor fault is present is not recommended. It is best to resolve the error before using the appliance for cooking.

Repair costs vary depending on what component has failed. If only the connector needs reseating or cleaning, the cost may be limited to a service call fee, typically in the range of $75 to $150. Replacing the weight sensor itself usually adds $30 to $80 in parts. If the main PCB needs replacement, total costs including parts and labor can range from $150 to $350 or more, at which point comparing the repair cost to the value of the microwave is worthwhile.

A knowledgeable DIYer can start by unplugging the microwave and inspecting the weight sensor connector to ensure it is fully seated and free of corrosion or damaged pins. If the connector looks intact, testing or replacing the weight sensor requires more technical ability and access to internal components. Microwave capacitors can hold a lethal charge even when unplugged, so internal work should only be done by someone who knows how to safely discharge the high-voltage capacitor first.

Unplugging the microwave for a few minutes and restoring power may temporarily clear the E-32 display, but the error will return if the underlying fault is still present. Because the code requires the sensor value to remain out of range for 30 seconds to trigger, a reset will not resolve a genuine sensor short or wiring problem. A permanent fix requires diagnosing and repairing the sensor circuit.