LG Microwave Error Code E-63

E-63 indicates a humidity sensor T1 maximum time error. The microwave's humidity sensor failed to detect moisture from food within the allotted time window, causing the control board to stop the cooking cycle and display the fault. This can result from an empty microwave, a blocked sensor, a faulty sensor, or a wiring issue.

A reset, such as unplugging the unit for a minute and plugging it back in, may temporarily clear the E-63 code. However, if the underlying cause such as an obstructed sensor or a hardware fault is not addressed, the error is likely to return the next time a sensor cooking mode is used.

If the fix is simply cleaning the sensor or correcting an empty-cavity user error, there is no parts cost involved. If the humidity sensor needs to be replaced, parts and labor costs can typically range from around $75 to $200 depending on the specific model and local labor rates. A control board replacement, if required, would generally cost more and may not be economical on older units.

Start by confirming that food was actually placed in the microwave before starting a sensor cook mode. Then inspect the humidity sensor area for grease, food residue, or any object blocking it, and clean the surface gently with a damp cloth. If the error persists after these steps, the humidity sensor or its wiring connection may need to be inspected and possibly replaced by a technician.

The E-63 error typically interrupts the cooking cycle, so the microwave may not complete sensor-based cooking programs while the fault is active. You may still be able to use manual timed cooking modes depending on how the unit responds. It is best to resolve the error before relying on the appliance for normal use.