How to repair a natural gas furnace that is not turning on

Many modern furnaces can not turn on if the pilot light is out

A malfunctioning furnace causes discomfort and could lead to costly damage within your home. Your home’s pipes could freeze, and busts due to extremely cold temperatures or condensation within your home may also damage your windows and degrade your home’s interior decor. Therefore, it is prudent for you to repair your broken natural gas furnace before the cold season begins. Some HVAC problems require the attention of an HVAC professional, while others don’t. For instance, if your HVAC system fails to turn on, you need to fix it yourself. To do this, you need to begin by checking your circuit breakers as they could be shut off. Inspect the circuit breaker panel to ensure all your HVAC system switches are set on. Proceed to the thermostat, which is the common cause of a furnace that is not turning on. Check for programming failure or incorrect settings. Reprogram it and set it about 10 degrees above your current temperature to test if your system turns on. Ensure it’s set to heat. Next, check your drain pan, which collects water eliminated from the air by the HVAC system. The system is designed to pump out the water automatically if it’s in good working condition. When full, the drain pan triggers a float switch which prevents the furnace from turning on. Clear the pan’s drain and ensure that the pump is not faulty. You’ll also need to unclog your air filter or replace it if it is damaged. A faulty air filter triggers a safety feature that impedes your HVAC system from turning on. Lastly, check your pilot light and your natural gas supply. Many modern furnaces can not turn on if the pilot light is out. If none of these corrective measures work, contact an HVAC repairman for help.

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