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DIY HVAC Troubleshooting Guide
Simple Steps Before You Call the Pros
Is your air conditioner or heating system acting up? Before scheduling a service call, click on your issue below and try these easy troubleshooting steps to see if you can identify the issue yourself. If these tips don’t help you identify the issue, our expert technicians are ready to help!
✔ Check the Thermostat – Make sure it’s set to “Cool” and the temperature is set lower than the current room temperature.
✔ Inspect the Air Filter – A dirty filter can restrict airflow. Replace it if it’s clogged.
✔ Check Your Vents – Ensure all supply and return vents are open and unobstructed.
✔ Look at the Outdoor Unit – Clear away leaves, debris, or anything blocking airflow around the condenser.
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✔ Check the Power – Ensure the system is plugged in, and check the circuit breaker for tripped switches.
✔ Inspect the Thermostat – Dead batteries or incorrect settings can prevent it from turning on.
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✔ Inspect the Air Filter – A dirty filter can lead to frozen coils, which may cause water buildup.
✔ Look for Ice on the Coils – If the coils are frozen, turn off the system and let them thaw before restarting.
✔ Safety Hazards– Please be careful not to remove panels or open doors that might expose live electrical wires.
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✔ Rattling or Banging? – This could indicate loose parts or debris in the system.
✔ Whistling or Hissing? – Possible duct leaks or refrigerant issues.
✔ Squealing? – A worn-out belt or motor bearings may need replacement.
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✔ Check the Batteries – If your thermostat uses batteries, replace them and see if it powers back on.
✔ Check the Circuit Breaker – A tripped breaker can cause your thermostat to lose power. Reset it if needed.
✔ Look for a Tripped Safety Switch – Some systems shut off if there’s a clogged drain or another safety issue. Check for standing water near your unit.
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When to Call the Experts
If you’ve tried these troubleshooting steps and your HVAC system still isn’t working properly, it’s time to call in the professionals. Our certified technicians can quickly diagnose and fix any issue, ensuring your home stays comfortable year-round.
Disclaimer
The troubleshooting tips provided on this page are for informational purposes only and are intended to help homeowners with basic HVAC issues. While some minor problems can be resolved with simple checks, HVAC systems contain electrical components, refrigerants, and mechanical parts that can be dangerous if handled improperly.
By using this guide, you acknowledge that Florida Comfort Air Conditioning is not responsible for any damage, injury, or further issues that may arise from attempting DIY troubleshooting. For complex problems, safety concerns, or system malfunctions, we strongly recommend contacting our licensed HVAC professionals for expert diagnosis and service.