Schedule Your $93 Or It's FREE Drain Clearing Appointment

What to Check When Your Furnace Isn’t Heating

Key Steps to Troubleshoot a Non-Heating Furnace:

  1. Check the Thermostat Settings: Ensure the thermostat is set to “heat” mode and the temperature is adjusted above the current room temperature. It’s also advisable to replace the thermostat batteries if they haven’t been changed recently.
  2. Inspect the Furnace Filter: A clogged or dirty filter can restrict airflow, causing the furnace to shut down or operate inefficiently. Regularly checking and replacing the filter can prevent this issue.
  3. Examine the Circuit Breaker: Locate your home’s electrical panel and verify that the circuit breaker for the furnace is in the “on” position. If it has tripped, reset it and monitor the furnace’s performance.
  4. Ensure the Gas Supply is On: For gas furnaces, confirm that the gas valve is open. If you suspect issues with the gas supply, it’s crucial to contact a professional immediately.
  5. Look for Error Codes: Modern furnaces often display error codes through flashing lights or digital displays. Refer to your furnace’s manual to interpret these codes and determine the necessary action.

By following these steps, homeowners can address many common furnace problems without the need for immediate professional assistance. However, if issues persist after performing these checks, it’s essential to consult with a licensed HVAC technician to ensure safety and proper furnace operation.

For more detailed guidance, you can watch the full video below:

For additional information on furnace repair services, book an appointment with JSP Home Services.

Skip to content