Is your red light on. Master Your Lift Station: Keep It Running

When the red light comes on for your septic lift station, it’s an alarm telling you the wet well has reached a high level or the pump has failed to keep up. That red light usually accompanies an audible alarm and means there’s a risk of sewage backing up into the building or overflowing at the discharge point. Treat the alarm seriously and act quickly to reduce flow into the system and find the cause before the situation worsens.

Immediate actions: stop using water-heavy appliances (dishwasher, washing machine, showers, toilets) and avoid flushing if possible to reduce inflow. Check the control panel for alarm indications and any obvious faults or error codes, and listen for the pump trying to run. You can safely check your household breaker to see if the pump’s circuit has tripped and reset it only if you’re comfortable doing so; do not open electrical panels or attempt repairs if you are not qualified. Never enter the wet well or put hands down into the tank — hazardous gases and electrical risks make this dangerous.

Common causes to know about include a stuck or failed float switch, clogged pump or impeller (rags, wipes, grease buildup), a failed pump motor, blocked discharge or frozen discharge line, excessive inflow from heavy use or stormwater, or a failed control/alarm panel or loss of power. Homeowners can check power availability, the breaker, and whether the alarm sounds continuously versus intermittently, but diagnosing and repairing pumps, floats, or control systems is usually a job for a licensed septic technician or pump service company.

Prevention and maintenance: have the lift station and septic tank inspected and pumped on a schedule recommended by your septic pro, test the alarm and float switches periodically, and consider a battery backup or generator for power outages. Keep records of service visits and install covers and locks to keep debris and stormwater out. If the red light won’t clear after basic checks, or if you smell sewage or see surface discharge, call a qualified septic contractor immediately — don’t wait. Safety first: avoid confined-space entry, keep children and pets away, and let professionals handle electrical and mechanical repairs.