Septic Alarm Going Off
A septic alarm means the liquid level in your pump chamber has risen above the normal operating range. Possible causes include a failed pump, a faulty float switch, or a power interruption that let the chamber fill. Silence the audible buzzer if possible, reduce household water use to a minimum, and describe the request to General Septic promptly - do not ignore the alarm.
What to do right now
Reduce water use immediately and use the request form to describe the situation to General Septic. Reserve capacity varies by system and use; do not assume it will last until backup occurs inside the home.
Common Causes
1Failed Pump
The most common cause. Septic pumps have a typical lifespan of 7–15 years. When a pump fails - either completely or by losing efficiency - the chamber fills and the alarm triggers. Pump replacement is the most common septic alarm repair.
2Faulty Float Switch
The float switch tells the pump when to turn on and off. A float that is waterlogged, tangled, or misaligned can prevent the pump from activating even when the pump itself is functional. Float switch replacement is a relatively inexpensive repair.
3Power Outage or Tripped Breaker
If the pump loses power for several hours, the chamber fills. The alarm may trigger immediately when power is restored. Check your breaker panel for a tripped breaker labeled for the septic system before calling for service.
4Groundwater Infiltration During Heavy Rain
Heavy rainfall can raise the water table and allow groundwater to infiltrate the pump chamber, raising the level and triggering the alarm. If your alarm only goes off after heavy rain, this is likely the cause - and a sign your system needs evaluation for drainage improvements.
5Unusually High Water Use
Hosting extra guests, running multiple appliances simultaneously, or a leaking toilet can overwhelm a pump that is working correctly, triggering the high-water alarm. If the alarm clears after reducing use, monitor closely and schedule a preventive inspection.
What to Do
- 1
Silence the audible buzzer (not the indicator light)
Most control panels have a separate silence switch for the buzzer. Pressing it mutes the sound but leaves the alarm light on - this is correct. The light stays on until the underlying problem is resolved.
- 2
Check for a tripped breaker
Before submitting a request, check your electrical panel for a breaker labeled 'septic pump' or 'aerator.' A tripped breaker after a power surge is a common cause. Reset it once - if it trips again, describe the issue to General Septic.
- 3
Reduce water use to absolute minimums
Skip laundry, showers if possible, and dishwasher cycles. Use the toilet only when necessary. This reduces load on the pump chamber while General Septic prepares the requested service.
- 4
Describe the urgent request
Describe the alarm symptoms - when it started, whether you have had any backups or slow drains, and if the alarm followed a power outage or heavy rain. General Septic can confirm the equipment and scope needed.
What to Avoid
- Do not attempt to reset or bypass the control panel - this can damage the pump or cause the chamber to overflow
- Do not ignore the alarm and continue normal water use - the reserve will fill and sewage may back up
- Do not assume the alarm is a false positive without verifying - recurring false alarms indicate a real underlying problem
- Do not add water-using appliances (laundry, dishwasher) until service is complete
Related Services
Septic Repair
Repairs for broken baffles, crushed pipes, and failing pumps.
Emergency Service
Emergency septic service for backups, alarms, and overflows.
Septic Maintenance
Filter cleaning, baffle checks, and routine system tune-ups.
Septic Inspection
Comprehensive inspections for real estate transactions and health checks.
Request Guidance in the Greater Seattle Area
General Septic helps property owners across King, Pierce, and Snohomish counties request direct septic service from General Septic. Use the form above to share the relevant details.