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Why Does My Heating System Shut off Before My Home Is Warm?

Helms Heating & Air Conditioning - Thursday, October 06, 2016
Girl with coffee concerned about heater


You need your heating and air conditioning system, but what happens when it’s not working like it should? One common issue that could show up at your house is when the heat shuts off but the house isn’t warm. What should you do? Read on for the scoop. 

Why Does Heating System Shut off Prematurely?

If your furnace isn’t warming your house to the desired temperature, there is definitely something wrong. There are a few things you can check to diagnose the problem: 

Check the thermostat: it could be set incorrectly, causing the heating system to turn off before the house feels warm. It could also be malfunctioning. Turn the temperature down significantly and let the ambient temperature drop so the set temp and the actual temp match. Then turn it up again and see what happens. If it still isn’t warming the room, you need a technician to diagnose the problem.

Check the filter: if your air filter is clogged it will impair the airflow to the heating system. When this happens it can cause your furnace or heater to overheat and shut off before it’s done working to warm the house

Check your air intake vents: if a vent is blocked it’s like having a dirty air filter and it will block the airflow to the heating unit, causing it to shut down when it overheats. 

What Next?

If none of these quick checks fix the problem, it could be something more serious, such as the unit hitting the high limit or damage to the heat exchanger. No matter what it could be, you need to find out what the cause actually is so you can get your home warmed up. 

Living with a malfunctioning heating system is a quick way to an uncomfortable home and a broken down furnace. If your heating and air conditioning system isn’t working properly, for any reason, contact our team at Helms Heating and Air Conditioning ASAP.