Septic and Grinder Pump Alarm Codes

A Guide to Septic Pump Alarm Lights and Codes

Understanding your septic or grinder pump alarm is crucial for preventing costly wastewater backups and system damage. An alarm is your system's way of telling you it needs immediate attention. When a horn sounds or a light flashes, knowing what it means allows you to respond quickly and appropriately.

What to Do First When the Alarm Goes Off

A pump alarm can be startling, but don't ignore it. Taking a few immediate steps can protect your system and your home.

Silence the Alarm. Most panels have a "silence" or "reset" button. Press it to stop the audible horn. The warning light will likely stay on until the underlying issue is resolved. This is normal.

Drastically Reduce Water Usage. The alarm almost always signals a high water level in your tank. Stop using showers, washing machines, dishwashers and sinks. Minimize toilet flushing until the system can catch up or be repaired.

Check for Power Outages. Look for a dedicated circuit breaker for the pump system in your home's electrical panel. Sometimes, a tripped breaker is the only problem. If the breaker is tripped, try resetting it once. If it trips again, do not reset it and call a professional.