Nobody wants to discover their HVAC system isn't working on one of the hottest days of the year. The same holds when the system breaks down on a freezing winter night. Occupants of the home may not be comfortable, and their health and well-being could be at risk due to the system failure. Their property may even sustain damage when the system isn't working.
If you find yourself in this situation, you may need your HVAC serviced. However, it is essential to know what to do in an HVAC emergency to remain safe and get the system working properly again quickly. How can a homeowner identify the issue and stay safe? When should a technician be called in for help?
Complete System Failure
When the system will not work at all, call a technician immediately. There is a sign of a serious issue that must be addressed promptly. However, before taking the step, check the breaker to ensure it has not tripped. If the breaker has tripped, attempt to reset it. If it immediately shuts off again, a technician is required.
Unusual Noise and Smells
The HVAC system should not make banging or grinding noises. If the system begins screeching, there is an issue. Furthermore, HVAC systems should not emit a burning or gas-like odor. Any unusual noises or smells could indicate an electrical problem, a gas leak, or a mechanical failure. It is best to leave these repairs to a technician.
Ice on the HVAC System or an Apparent Leak
When ice builds up on the system coils, a refrigerant leak may be present. A visible water leak could be a sign of a drainage issue or suggest a clogged filter. Check the filters before calling a technician to ensure the problem cannot be quickly resolved.
Malfunctioning Thermostat
Anytime the system does not work as intended, always check the thermostat. It's possible that a family member changed one or more settings, which may be the issue. However, if the thermostat is not responding to user input or displays an incorrect reading, there may be an electrical issue. The problem might be even bigger, so it's best to work with a technician to determine the exact cause.
Handling an HVAC Emergency
Homeowners should not panic when they're HVAC isn't working. It is best to remain calm and assess the situation. A simple fix may be all that is needed to get the system up and running again.
When the problem cannot be immediately resolved, turn the HVAC system off. When smoke, sparks, or burning smells are coming from the system, immediate action is needed to prevent damage to the home and protect the occupants’ safety.
If it smells like gas is coming from the system, immediately evacuate everyone from the home and contact the fire department and the gas provider. Do not return to the house until officials have determined it is safe to do so. Contact a licensed HVAC contractor to repair the system and ensure safe operation.
Homeowners may be tempted to make significant repairs without calling a technician. However, HVAC issues tend to be complex. The homeowner may have resolved one issue while missing others. Furthermore, DIY repairs could void the warranty. Work with a licensed technician to prevent issues and minimize the risk of future problems. Your wallet will thank you in the long run.