A septic alarm sounds when water in the pump chamber has risen above the normal level. It means the pump has not moved the water out fast enough, has stopped, or has no power.
In the first ten minutes
- Silence the alarm with the panel button, if there is one
- Stop using water: no laundry, dishwasher or long showers
- Check the breaker that feeds the pump and reset it once if it has tripped
- Look at the panel for a light that shows the pump is running
- Do not open the tank or the pump chamber
If the alarm stops by itself
An alarm that clears after heavy water use, such as a day of laundry, can mean the pump is keeping up but the system is near its limit. Space out water use for a few days and have the system looked at.
If it keeps coming back
A repeating alarm usually means a stuck float, a failing pump, a failed check valve or a drain field that is not taking water. Each has a different fix, so a diagnosis is cheaper than guessing.
When to call
Call if the alarm returns after you reset the breaker, if the pump does not run, if drains are backing up or if you see wet ground over the field. Describe what the panel is doing and whether you hear the pump.
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Questions about this guide
Does a red septic alarm mean the pump must be replaced?
No. A high-water alarm is a symptom, not a diagnosis. Pump operation, floats, controls, power supply and water use may need assessment. Reduce water use and call; do not bypass controls or attempt electrical work.