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My furnace won't turn on

HVAC

The answer to 'my furnace won't turn on' is that there could be several common causes, including a tripped circuit breaker, issues with the thermostat, or problems with the furnace itself. Symptoms may include the furnace not starting at all, or the blower running but the burners not igniting.

For simple issues like a tripped breaker or a thermostat problem, you may be able to troubleshoot and fix the issue yourself. However, for more complex problems with the furnace components, it's best to call a professional HVAC technician to diagnose and repair the issue properly and safely.

Sources

1.
HVAC Experts— guide
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Step-by-Step Guide

  1. 1

    Check the Circuit Breaker

    Locate the circuit breaker for your furnace and make sure it has not been tripped. If it has, reset the breaker and see if the furnace turns on.

  2. 2

    Inspect the Thermostat

    Make sure the thermostat is set to 'heat' mode and the temperature is set higher than the current room temperature. Also check the batteries if it's a battery-powered thermostat.

Frequently Asked Questions

What are some common causes of a furnace not turning on?

Common causes include a tripped circuit breaker, issues with the thermostat, problems with the furnace igniter, or other internal component failures.

When should I call a professional HVAC technician?

It's best to call a professional if you're unable to identify and fix the issue yourself, or if the problem seems to be with the internal components of the furnace.

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