LG Microwave Error Code E-61

E-61 on an LG microwave indicates a humidity sensor open error, meaning the control board cannot detect a signal from the humidity sensor. The sensor is used during automatic cooking modes to measure steam from food and adjust cooking time. This error points to a failed sensor, a loose connector, or a wiring problem between the sensor and the main PCB.

The E-61 error specifically affects the humidity sensor circuit, so manual timed cooking modes may still function. However, automatic sensor cooking programs will not operate correctly without a working humidity sensor, and results could be unpredictable. It is best to avoid relying on sensor cooking features until the fault is resolved, and if the microwave shows any other abnormal behavior, discontinue use until it is inspected.

Repair costs vary depending on the root cause. If only a connector needs to be reseated, there may be no parts cost at all. A replacement humidity sensor typically falls in the range of $15 to $50 for the part, while professional labor to diagnose and repair the issue can bring the total to roughly $75 to $200 depending on the technician and region. If the control board is at fault, costs will be higher due to the price of that component.

Some causes of E-61 are DIY-friendly, such as reseating a loose connector between the sensor housing and the PCB. However, if the humidity sensor itself needs replacement or the wiring harness is damaged, the repair requires disassembling part of the microwave. Technicians and experienced DIYers comfortable with appliance repair can handle this, but high-voltage components inside a microwave require caution and proper safety procedures before any internal inspection.

A simple power reset by unplugging the microwave for a few minutes may temporarily clear the error display, but the code will return if the underlying fault with the humidity sensor or its wiring is still present. A reset does not repair a failed sensor or a disconnected connector. Proper diagnosis and repair of the sensor circuit are required for a lasting fix.