Aerobic septic alarm going off: what to do
An alarm on an aerobic system means something needs attention, often the air compressor or a high water level. It is not something to ignore or rewire.
Safe first steps
- Silence the buzzer if the panel has a switch, but leave the light on.
- Cut water use: hold off on laundry, dishwashers and long showers until the system is checked.
- Check the breaker for the aerobic unit. If it tripped again, stop and call a pro.
- Listen near the unit: OSU advises homeowners to make sure the air compressor is running (OSU Extension PSS-2914).
- Call a certified service provider. Edmond advises contacting a specialist immediately when the alarm activates (City of Edmond aerobic maintenance page).
Don't do it yourself
OSU recommends that homeowners do not try to repair aerobic units themselves; open tanks and electrical parts are hazards (OSU Extension PSS-2914).
Other signs to watch
- A rotten-egg odor (OSU Extension PSS-2914)
- No chlorine in the feeder; Edmond asks owners to check chlorine monthly (City of Edmond aerobic maintenance page)
- Spray heads that are clogged, broken or spraying at the wrong time (OSU Extension PSS-2914)
Who pays
Oklahoma installers must maintain a new aerobic system for the first two years; after that the owner is responsible (OSU Extension PSS-2275 (aerobic systems)). Check your paperwork before paying for a repair.
Checked Oct 23, 2026.
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