Emergency AC Repair: What To Do First?
When your cooling system suddenly stops working on a hot Missouri day, knowing how to handle an emergency AC repair can make all the difference. Whether your air conditioner is blowing warm air, leaking water, or refusing to turn on at all, taking the right steps immediately helps prevent further damage and keeps your home safe and comfortable.
- Quick response: Acting fast limits costly repairs and system damage.
- Safety first: Identifying potential hazards protects your home and family.
- Professional help: Knowing when to call a licensed HVAC technician ensures proper repair.
Why AC Emergencies Happen

Your air conditioner is a complex system with electrical, mechanical, and refrigerant components that all work together to cool your home. When one part fails—especially during heavy use in the summer—your entire system can quickly shut down.
Common causes of AC emergencies include electrical failures, refrigerant leaks, frozen coils, or broken compressor motors. Sometimes, the problem is simple, like a clogged air filter or tripped circuit breaker. Knowing how to troubleshoot the basics can save time and stress while you wait for professional repair.
7 Steps To Take When Your AC Stops Working
When your air conditioner suddenly quits, it’s easy to panic—but a calm, step-by-step approach helps you identify what’s wrong. Following these key steps can help you stay safe and comfortable until a technician arrives.
1. Turn Off the AC Unit
If your system is making loud noises, leaking, or emitting a burning smell, turn it off immediately at the thermostat and the circuit breaker. Continuing to run a malfunctioning AC can cause further damage or even create a fire hazard.
- Safety priority: Prevents electrical shorts and overheating components.
- Damage prevention: Stops mechanical parts from burning out or freezing.
2. Check the Thermostat Settings
Before assuming your AC is broken, make sure your thermostat is set to the correct mode and temperature. Dead batteries or accidental setting changes can cause the system to appear nonfunctional.
- Verify power: Ensure the thermostat screen is on and responsive.
- Set to “Cool”: Double-check that the system isn’t switched to “Heat” or “Fan Only.”
3. Inspect Your Breakers and Fuses
Power surges and high summer demand can trip your circuit breakers. Check your electrical panel for any tripped breakers or blown fuses related to your HVAC system.
- Reset carefully: Flip any tripped breakers fully off, then back on.
- If it trips again: Turn off power and call a professional immediately to avoid electrical hazards.
4. Replace or Clean the Air Filter
A clogged air filter is one of the most common causes of AC failure. When airflow is restricted, your system can overheat or freeze up.
- Quick check: Pull out the filter and inspect for dust and debris.
- Maintenance tip: Replace disposable filters every 1–3 months, or clean reusable ones as directed.
5. Inspect the Outdoor Unit
Head outside to look at your condenser unit. Debris like leaves, dirt, or grass clippings can block airflow and cause the system to shut down.
- Clear debris: Gently remove anything blocking the vents or fan blades.
- Listen and observe: If you hear clicking, buzzing, or grinding, turn the system off and wait for a technician.
6. Look for Signs of Ice or Leaks
Frozen coils or water pooling around your indoor unit are warning signs of a larger problem. Ice can form from low refrigerant or airflow issues, while leaks may indicate a clogged drain line or condensation overflow.
- Melt ice safely: Turn off the AC and switch the fan to “On” to help thaw coils.
- Avoid DIY fixes: Refrigerant issues should only be handled by licensed professionals.
7. Contact a Professional HVAC Technician

If the system still isn’t working, it’s time to call for emergency AC repair. Professional technicians have the tools and training to diagnose and fix the problem safely and quickly.
- When to call immediately: No airflow, burning smells, strange noises, or system leaks.
- What to share: Tell the technician any symptoms you’ve noticed—such as noises, odors, or when the problem started.
What To Expect During an Emergency AC Repair Visit
Understanding what happens during an emergency service call helps you feel more prepared. A licensed HVAC technician will perform a thorough inspection of your system to identify the cause of the problem.
- Initial assessment: The technician checks the thermostat, breaker, and power supply.
- Component testing: Key parts like the compressor, capacitor, and fan motor are tested.
- Refrigerant check: Technicians verify proper refrigerant pressure and look for leaks.
- System cleaning: If dirt or debris caused the issue, coils and filters may be cleaned on-site.
- Repair and recommendation: After diagnosing the issue, the technician explains your repair options, estimated cost, and whether any replacement parts are needed.
In some cases, temporary repairs can restore cooling until a full part replacement can be scheduled.
Common Causes of Emergency AC Repairs
While some issues develop suddenly, others result from long-term neglect or lack of maintenance. Recognizing the warning signs early can prevent a complete system failure.
- Dirty air filters: Restrict airflow and cause overheating.
- Refrigerant leaks: Reduce cooling ability and increase energy use.
- Frozen coils: Caused by restricted airflow or low refrigerant levels.
- Faulty capacitors: Prevent fans and compressors from starting.
- Clogged drain lines: Lead to leaks and water damage.
- Aging equipment: Older systems are more likely to break down during heavy use.
Preventing Future AC Emergencies
You can avoid many AC emergencies by keeping up with regular maintenance and seasonal inspections. Preventive care not only improves performance but also reduces energy bills and extends the system’s life span.
- Schedule annual tune-ups: Professional maintenance from Lorenz Plumbing Heating & Air keeps your system efficient and reliable.
- Replace filters regularly: Clean filters protect vital components from dust and debris.
- Keep vents clear: Ensure furniture or drapes aren’t blocking airflow.
- Maintain outdoor clearance: Trim vegetation around the condenser for proper ventilation.
- Watch for warning signs: Strange smells, noises, or inconsistent cooling mean it’s time to schedule service.
Why Choose Lorenz for Emergency AC Repair

When your air conditioner breaks down unexpectedly, you need a trusted local team that can respond quickly and professionally. Lorenz Plumbing Heating & Air provides fast, reliable emergency AC repair for Springfield homeowners, ensuring comfort and safety when you need it most.
- 24/7 availability: Prompt response to restore your home’s cooling fast.
- Certified technicians: Experienced professionals who diagnose and repair all major AC brands.
- Comprehensive service: From refrigerant leaks to electrical failures, we handle every repair safely and efficiently.
- Transparent pricing: Clear communication and upfront estimates before any work begins.
- Local reputation: Decades of trusted service throughout Springfield and surrounding communities.
Lorenz understands that AC breakdowns never happen at a convenient time—that’s why our technicians arrive fully equipped to handle your repair the same day whenever possible.
Count on Lorenz When You Need Emergency AC Repair
Dealing with an AC breakdown can be stressful, but knowing what to do first keeps your home safe and comfortable while you wait for help. By following simple steps like checking your thermostat, inspecting filters, and calling professionals promptly, you can prevent further damage and restore your cooling system quickly.
At Lorenz Plumbing Heating & Air, we specialize in fast, dependable emergency AC repair services that get your home back to comfort in no time. Whether it’s a late-night breakdown or a weekend outage, our team is ready to help 24/7. Contact Lorenz today for expert emergency service and peace of mind you can trust.
