If your HVAC system breaks down during the holidays, check the thermostat, reset the circuit breaker, and replace the air filter. Stay warm with space heaters, block drafts, and schedule professional repairs if needed.
If your HVAC system stops working during the holidays, knowing how to troubleshoot issues, stay warm while waiting for repairs, and prevent future failures can save you stress and discomfort. Taking preventive steps before the holiday rush can also ensure your home stays comfortable for your guests.
Why HVAC Systems Fail During the Holidays
During the holiday season, your HVAC system has to work harder due to colder weather and increased indoor activity. Understanding why failures happen can help you prevent them before they occur.
Common Causes of Holiday HVAC Breakdowns
Increased System Load
- With more people in the house, body heat and cooking raise indoor temperatures.
- The HVAC system cycles on and off frequently, leading to wear and tear.
- Cold air entering through open doors and windows forces the system to work harder.
Dirty or Clogged Air Filters
- A clogged filter restricts airflow, causing the system to overheat and shut down.
- More guests mean more dust and allergens, making filter changes even more important.
- Experts recommend changing filters every 1-3 months, especially before the holidays.
Thermostat Malfunctions
- If the thermostat is not calibrated properly, it may misread temperatures, causing the system to run inefficiently.
- Low batteries or a misplaced thermostat (near heat sources) can create heating issues.
- Smart thermostats help maintain stable temperatures and reduce energy waste.
Electrical or Furnace Issues
- Power surges from holiday lights or overloaded circuits can trip breakers, shutting down the HVAC.
- Older furnaces may struggle to maintain consistent heat under increased demand.
- A failing pilot light or ignition system can cause heating failure in gas furnaces.
Immediate Steps to Take If Your HVAC Breaks Down
If your heating system stops working, follow these steps before calling a technician.
Check the Thermostat
- Ensure it’s set to “heat” and at the correct temperature.
- Replace old batteries if it’s not responding.
- If you have a smart thermostat, check the app for alerts or error messages.
Inspect the Circuit Breaker
- Find your electrical panel and look for a tripped breaker.
- Reset it once, but if it trips again, you may have an electrical issue.
Replace the Air Filter
- A dirty air filter can block airflow and cause system shutdowns.
- Swap it out for a clean one to see if that restores heat.
Check the Furnace or Heat Pump
- For gas furnaces, make sure the pilot light is on.
- If you see ice buildup on a heat pump, turn it off and let it thaw.
Look for Airflow Blockages
- Ensure that all vents are open and not blocked by furniture.
- Move rugs or decorations that may be restricting air circulation.
How to Stay Warm While Waiting for Repairs
If your HVAC system is down, use these quick solutions to keep your home warm.
Use Space Heaters Safely
- Place them away from flammable items like curtains or furniture.
- Never leave them unattended or plugged in overnight.
Layer Up with Warm Clothing and Blankets
- Wear thermal layers, socks, and hats to retain body heat.
- Use extra blankets and comforters while sleeping.
Block Drafts and Keep Doors Closed
- Seal window gaps with towels or weather stripping.
- Keep doors closed to trap heat in occupied rooms.
Utilize Ceiling Fans
- Set them to rotate clockwise to push warm air back down.
- This helps redistribute heat more effectively.
Warm Up with Hot Drinks and Meals
- Drinking warm tea, coffee, or soup can help regulate body temperature.
- Cooking meals in the oven can add heat to the kitchen.
Preventing HVAC Failures During the Holidays
The best way to avoid an HVAC breakdown is through proper maintenance and preparation.
Schedule a Pre-Holiday HVAC Inspection
- An HVAC professional can catch small issues before they become major problems.
- Inspections check for worn-out parts, refrigerant levels, and proper airflow.
Upgrade to a Smart Thermostat
- Smart thermostats adjust temperature settings automatically, preventing overuse.
- They help maintain consistent indoor temperatures during gatherings.
Ensure Proper Home Insulation
- Well-insulated homes retain heat longer, reducing the strain on your HVAC.
- Insulation should be checked in the attic, walls, and ductwork.
Replace Old HVAC Systems
- If your system is 10-15 years old, consider upgrading to a more energy-efficient model.
- Newer units offer better performance and lower energy costs.
Use Energy-Efficient Heating Habits
- Set the thermostat to 68°F when home and lower at night for energy savings.
- Keep curtains open during the day to allow sunlight to help warm the home.
When to Call a Professional
Some HVAC issues require expert attention. If you notice any of the following, contact a technician immediately.
- Burning smells or strange noises coming from your furnace.
- Frequent system cycling or failure to maintain temperature.
- Pilot light issues in gas furnaces (if it’s yellow instead of blue).
- Repeated circuit breaker trips, which could indicate wiring problems.
Final Thoughts
HVAC failures during the holidays can be frustrating, but knowing how to troubleshoot and stay warm can make all the difference.
By taking preventative measures like scheduling maintenance, changing filters, and using smart thermostats, you can avoid unexpected breakdowns and enjoy a worry-free holiday season. If you experience ongoing HVAC issues, it may be time to consult a professional for repairs or an upgrade.
