Septic help in Central Florida
ATU Troubleshooting in Orlando, FL
Tell us what is happening. We will find the cause, explain your options, and handle ATU troubleshooting with care.
65+ years serving Central Florida
Licensed local service team
Fast scheduling and clear communication
Service Overview
ATU Troubleshooting With Clear Answers Before Work Begins
Aerobic treatment units are more complex than conventional septic systems. They rely on pumps, air compressors, timers, and spray heads working together to treat and disperse wastewater properly. When any one of those components fails — or when the system falls out of compliance — the whole unit can shut down or trigger an alarm. That's stressful, especially when the clock is ticking on a county inspection or permit deadline.
Lapin Services has been troubleshooting and repairing ATUs throughout Central Florida for decades. As a licensed Master Septic Contractor (SM0890812), we know these systems inside and out — from aeration failures and pump malfunctions to alarm resets and full compliance restorations. One call gets you an experienced technician who can diagnose your system, walk you through exactly what's wrong, and get it working again.
Problems We Solve
Common ATU Troubleshooting Problems We Fix
You do not have to diagnose the problem yourself. These are common issues we help confirm, explain, and repair.
ATU Alarm Won't Stop Going Off
An ATU alarm is the system's way of telling you something is wrong — high water levels, a failed pump, or a loss of power to a key component. Silencing it without finding the root cause will only delay a bigger problem. Our technicians identify the trigger and resolve it at the source.
Aeration System Not Functioning
Aerobic treatment depends on a steady supply of oxygen to the treatment chamber. When the air pump or compressor fails, the system stops treating waste properly. Left untreated, this leads to odors, non-compliant effluent, and potential environmental violations.
Spray Heads Clogged or Not Rotating
Blocked or broken spray heads prevent treated effluent from dispersing evenly across the spray field. Over time, this causes saturated areas, standing water, and potential health hazards on your property.
Pump Failure or Float Switch Issues
A malfunctioning pump or stuck float switch can cause the system to overflow, under-dose the spray field, or trigger continuous alarms. These are among the most common — and most urgent — ATU failures we see in Central Florida.
Out of Compliance with County Requirements
Florida requires ATU owners to maintain an active maintenance contract and pass regular inspections. If your system has lapsed on service or failed an inspection, Lapin can restore compliance — including permit documentation, manifests, and coordination with county inspectors.
When to Call
Signs Your Septic System Needs Professional Attention
If you notice any of these signs, call Lapin. We will find the cause and explain what needs to happen next.
Alarm Light or Buzzer Is Active
Any active alarm on your ATU control panel means the system has detected a problem. Don't ignore it or just reset it — call for a diagnostic so the underlying issue gets fixed before it gets worse.
Foul Odor Near the System or Spray Field
A working ATU should produce very little odor. If you're noticing a persistent sewage smell near the tank or spray area, the system likely isn't treating wastewater effectively and needs immediate attention.
Standing Water or Wet Spots on the Property
Soggy patches or pooling water near your spray field can indicate the system is dispensing untreated or over-saturated effluent — a potential health and compliance issue that needs to be addressed quickly.
Spray Heads Not Spraying or Spraying Unevenly
If you can see your spray heads during a cycle and they're not rotating, sputtering, or not activating at all, the distribution system has a problem — whether it's a clog, a broken head, or a pump issue.
System Hasn't Been Serviced in Over a Year
ATUs require more frequent maintenance than conventional septic systems. If it's been more than 12 months since your last service visit, the system may be running degraded without triggering a visible alarm yet — a tune-up now prevents a breakdown later.
Our Process
What to Expect From Your ATU Troubleshooting Visit
Tell us what is happening. We arrive prepared, explain the work clearly, and give clear pricing before work begins.
Step 1
Tell Us What Is Happening
Call or request service. You do not have to know exactly what failed; describe what you see, smell, hear, or need done.
Step 2
We Find the Cause
A Lapin technician or crew checks the issue, reviews the project, and explains what needs to be done in plain language.
Step 3
You Approve the Work
You get clear pricing and options before work begins, so you can make a confident decision.
Step 4
We Handle It With Care
We complete the approved work, respect your home, business, or jobsite, and keep you informed.
Step 5
We Stand Behind the Job
Before we leave, we confirm the work, answer questions, and make sure you know what to expect next.
Why Lapin
Why Central Florida Chooses Lapin for ATU Troubleshooting
Our name is on every job. We respect your time, budget, property, and trust.
65+ Years of Septic Expertise
Lapin has served Central Florida since 1958. Our name is on every job, and we do the work in a way we can stand behind.
Clear Communication
We explain what we find, what it means, and what your options are before work begins.
Respect for Your Property
We protect the home, business, property, or jobsite and treat people the way we would want to be treated.
The Right Team for the Work
We handle plumbing, septic, drains, sewer, underground utilities, commercial service, and serious project work.
Care When It Matters
Every call affects a family, tenant, customer, business, property, or project. We do not take that lightly.
Related Services
Related Services
FAQs
ATU Troubleshooting FAQs
What does it mean when my ATU alarm goes off?
An ATU alarm signals that the system has detected an abnormal condition — commonly a high water level in one of the chambers, a failed pump, loss of power to a component, or an aeration failure. Some alarms are minor and resolve quickly; others indicate an urgent problem. The safest move is to call a licensed technician to diagnose the specific cause rather than simply resetting the alarm and hoping it doesn’t return.
Can I reset the ATU alarm myself?
Most ATU control panels have a manual alarm silence or reset button, and it’s generally safe to silence the audible buzzer. However, resetting the alarm does not fix the underlying problem — the light or alarm will come back if the root cause isn’t addressed. We recommend calling Lapin for a diagnostic so the issue gets properly resolved, not just silenced.
How often does an ATU need to be serviced?
Florida requires aerobic treatment units to be inspected and serviced at least once per year under an active maintenance contract with a licensed contractor. In practice, many systems benefit from service every 4–6 months — especially systems under heavy use or those with older components. Regular maintenance catches small problems before they become expensive failures.
My ATU spray heads aren't working — is that a big deal?
Yes — functioning spray heads are essential for proper effluent dispersal across your spray field. When spray heads clog, break, or stop rotating, treated water backs up or pools in a concentrated area, which can saturate the soil, create odors, and put your property out of compliance. It’s also a potential health hazard. This should be addressed promptly.
My ATU hasn't had a maintenance visit in a while — am I in trouble?
Florida requires ATU owners to maintain an active service contract, so a lapsed maintenance history can put you out of compliance — particularly if you receive a notice from your county or need to sell the property. Lapin can perform a service visit, document the system’s current condition, and get your maintenance contract active again. The sooner you address it, the easier it is to restore compliance.
What's the difference between an ATU and a conventional septic system?
A conventional septic system uses natural bacteria in an anaerobic (oxygen-free) environment to break down waste before it disperses into a drainfield. An aerobic treatment unit (ATU) introduces oxygen into the process, creating a more active treatment environment that produces higher-quality effluent — often required in areas with high water tables or limited drainfield space. ATUs are more effective but also more mechanically complex, with pumps, aerators, timers, and spray systems that require regular maintenance.
Do you handle ATU compliance paperwork and county inspections?
Yes. As a licensed Master Septic Contractor, Lapin handles all required documentation — service records, manifests, permits, and direct coordination with county inspectors when needed. If your system has failed an inspection or you need to demonstrate compliance for a sale or permit, we can manage that process from start to finish.
How long does an ATU repair usually take?
Most common ATU repairs — pump replacements, spray head repairs, float switch fixes, aeration component service — are completed in a single visit. More involved repairs that require ordering parts may take a few days, but we’ll give you a clear timeline upfront. We keep our trucks well-stocked to handle the majority of issues same-day.
Schedule Service
Tell Us What Is Happening
Call Lapin or request service. We will get the right team moving, explain your options, and handle the work with care.