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Has this happened to you? It’s a cold winter night here in Philadelphia, a light snow is falling, and you’re getting ready to watch a movie and eat a pizza with your family. Then, one of the kids complains that it’s cold inside. You check the thermostat, and sure enough, the temp is dropping, but your heating system isn’t kicking on. So, what should you do when the heat goes out? We offered some AC tips in a previous blog, and great news, many of them work for heating, too. Check that post or keep reading here.


Don’t panic when you feel that cold air. There are a few things you can check yourself that might get you back on track.

  • Check the thermostat next to make sure it has power and that it’s set to heat. Check the thermostat’s batteries.
  • If the fan is running, check to see if it was turned to “on” at the thermostat instead of “auto.”
  • Look at the service switch on the side or just above the furnace to make sure it’s turned on.
  • Check your home’s main electrical panel to see if the breaker for the unit is tripped. If so, switch the breaker on and back off again and wait 15 minutes to see if the unit starts.
  • If your system runs on gas, check to see if the pilot light is lit.
  • Check the door panels of your indoor unit to make sure they are secured properly. Also, if the unit is less than about 20 years old, there is usually a safety switch behind the door panel. If the doors are not secure, the switch will engage and cut power to the unit.
  • Always change your filter according to schedule but hold on to the old one for reference. If you must schedule a service technician, the old filter will help the tech identify or rule out specific issues.
  • If you detect any sort of leak in or around the system, turn it off immediately and call a professional.
  • Any noises or loud airflow from detected coming from the HVAC system within the home can usually be remedied with minor adjustments.


What should you do in the meantime? And what about an emergency like a winter storm? Start by conserving the heat already in your home. Place rolled-up towels across the bottoms of doors, cover windows, and keep doors to the outside closed. Bring all your activities into one room and keep that door closed as much as possible. Have everyone bundle up with sweaters and blankets.

You’re in luck if you have a fireplace, but be careful about using propane or kerosene heaters, as these can build up dangerous carbon monoxide in a closed space. Be sure whatever heater you use is rated for indoor use and crack a window while you use it.


If you can’t fix the problem on your own, it’s time to call your local Philadelphia HVAC pros. Stallion’s service experts respond to calls quickly with 24/7 emergency service available. We can get you back to your family fun night in no time.We’re here in Philly to help you when your heat goes out. Call Stallion anytime, day or night, at (215) 461-3635 for emergency service.

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