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Top 10 Reasons Your Furnace is Not Working in 2023

Regular maintenance and furnace service are crucial to ensure that it operates efficiently, lasts longer, and provides clean, healthy heat. Here are the top 10 reasons why you should service your furnace.

The Furnace is not Working Properly if...

  1. Lack of maintenance: Regular maintenance is crucial for keeping your furnace working properly. Neglecting maintenance can cause various issues and ultimately result in a breakdown.
  2. Dirty air filter: A dirty air filter restricts airflow, which can cause your furnace to work harder than necessary and even shut down.
  3. Faulty thermostat: A malfunctioning thermostat can cause your furnace to turn on and off randomly or not turn on at all.
  4. Ignition problems: Ignition problems can prevent your furnace from starting or cause it to stop working in the middle of the operation.
  5. Clogged condensate drain: A clogged condensate drain can cause your furnace to shut down as a safety measure.
  6. Malfunctioning blower motor: The blower motor is responsible for circulating warm air throughout your home. A malfunctioning blower motor can cause poor airflow, and ultimately, inadequate heating.
  7. Dirty or faulty flame sensor: A dirty or faulty flame sensor can cause your furnace to shut down for safety reasons or prevent it from starting altogether.
  8. Damaged heat exchanger: A cracked or damaged heat exchanger can cause carbon monoxide leaks, which can be extremely dangerous for you and your family.
  9. Faulty limit switch: A malfunctioning limit switch can cause your furnace to cycle on and off too frequently, which can cause it to overheat and eventually shut down.
  10. Incorrectly sized furnace: If your furnace is too small or too large for your home, it can cause inadequate heating, poor airflow, and increased energy costs.
furnace is not working

In summary, lack of maintenance, dirty air filters, faulty thermostats, ignition problems, clogged condensate drains, malfunctioning blower motors, dirty or faulty flame sensors, damaged heat exchangers, faulty limit switches, and incorrectly sized furnaces are the top 10 reasons why your furnace may not be working properly.

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