The process to reset a septic light may vary depending on the type of system you have, but generally, there are a few steps you can follow:
Locate the septic system control panel. This is usually found near the septic tank or in the basement of the house. Look for the alarm reset button or switch. It may be labeled as "reset," "alarm silence," or something similar. Press and hold the reset button or flip the switch to the off position for a few seconds. Release the reset button or flip the switch back to the on position. Wait a few minutes to see if the light turns off.