Furnace Not Igniting? 7 Easy Fixes That Actually Work (Step-by-Step Guide)
By Home Repair Genie Quick Answer If your furnace is not igniting, the most common causes are a dirty flame sensor, clogged air filter, thermostat issues, a tripped breaker, or a faulty igniter. Start by checking the thermostat settings, replacing the air filter, and resetting power to the furnace before moving to more advanced troubleshooting. … Read more