Emergency HVAC 101: What to Do When the Heat (or Cold) is On

Welcome to Emergency HVAC 101, where we will discuss important tips on what you should do in case of an HVAC emergency. Whether it’s during extreme heat or cold, knowing how to handle an HVAC emergency can save you from discomfort and costly repairs. So let’s get started!

Tip #1: Stay Safe

The first and most important step in an HVAC emergency is to ensure your safety. If you detect any gas leaks, turn off the gas supply immediately and evacuate the building. In case of a fire or smoke, call for help and exit the building as quickly as possible. Remember to always prioritize your safety above all else.

Tip #2: Turn Off Your HVAC System

Once you have ensured your safety, the next step is to turn off your HVAC system. This will prevent any further damage or potential hazards. If you have a central heating or cooling system, locate the main power switch and turn it off. For individual units, turn off the circuit breaker or unplug them from their power source.

Tip #3: Check for Obvious Issues

After turning off your HVAC system, visually inspect it for any obvious issues. This can include blocked air vents, damaged or disconnected wires, and leaks from the unit. If you are comfortable doing so, you can try to address these issues yourself. However, if you are unsure or the issue seems complex, it’s best to leave it to a professional.

Tip #4: Try Basic Troubleshooting

If the issue seems minor, you can try some basic troubleshooting steps before calling for professional help. This can include changing the air filter, checking the thermostat settings, and clearing any debris from around the unit. These simple actions may solve the problem and save you from a costly repair bill.

Tip #5: Call a Professional

If none of the above tips work, it’s time to call a professional HVAC technician. They have the knowledge, skills, and tools to properly diagnose and fix the issue. It’s important to address an HVAC emergency promptly as delaying can lead to further damage and higher repair costs.


Dealing with an HVAC emergency can be stressful, but knowing what steps to take can make all the difference. Remember to prioritize your safety, turn off your HVAC system, and assess the issue before attempting any troubleshooting. If you are unsure or the issue seems complex, always call a professional for assistance. By following these tips, you can effectively handle an HVAC emergency with confidence and ease.