Frigidaire Furnace: Won't Start or Turn On
Commonly a faulty igniter, a dirty flame sensor, or a blower or control fault. Add a photo of your Frigidaire Furnace in the box below: the Triage Profile says what it is, how urgent it is, and who to call.
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In the next five minutes
Safe first steps, before the call. Nothing here needs a tool.
If you smell gas, a carbon monoxide alarm sounds, or anyone feels dizzy or sick: don’t touch any switch or plug, leave and get everyone out, then call 911 or the gas company from outside.
No gas smell? Switch the furnace off at the thermostat and at its breaker.
Don’t use it again until it’s checked, and keep people away from it.
Everything else about this problem
Is it an emergency?
Is a Frigidaire furnace that won't start an emergency?
Usually not, but it can be. Because this can be an emergency, leave it off and get it checked; don't reset it or turn it back on. Stop and call a pro if it keeps tripping the breaker, smells like burning, or you smell gas.
Symptoms & causes
When a Frigidaire furnace won't start or turn on, common symptoms include no heat production, a completely silent unit, or the fan running continuously without ignition. Root causes often involve a tripped circuit breaker, an incorrectly set thermostat, or a clogged air filter restricting airflow. More complex issues can stem from a faulty ignitor, a dirty flame sensor preventing gas flow, or a malfunctioning pressure switch or control board.
Tools & parts
For testing, a multimeter is essential to test electrical components and continuity. A screwdriver set is needed for accessing panels and components, along with a fine-grit emery cloth or wire brush for cleaning the flame sensor. Common Frigidaire replacement parts include a new hot surface ignitor or a flame sensor if testing indicates failure. For more complex issues, a Frigidaire pressure switch or a replacement control board might be necessary.
Safety first
Always begin by shutting off all power to the Frigidaire furnace at the main electrical breaker to prevent severe electrical shock. Next, locate and turn off the gas supply valve to the furnace to eliminate any risk of gas leaks or explosion. Be cautious of sharp edges inside the furnace and components that may still be hot, even after power is off, to avoid burns or cuts.
When to call a pro
A professional technician is required if you suspect a cracked heat exchanger, which can leak carbon monoxide and is extremely dangerous. Persistent gas leaks or issues with the main gas valve should also only be handled by a certified HVAC professional due to explosion risks. Complex control board tests, high voltage wiring repairs, or any issue requiring specialized tools and certifications are best left to an experienced Frigidaire service technician.
Questions people ask
Why is my Frigidaire furnace not turning on at all?
First, check your thermostat to ensure it's set to 'heat' and the temperature is above the current room temperature. Then, inspect your home's electrical panel for a tripped circuit breaker labeled for the furnace, resetting it if necessary.
What if the fan runs but there's no heat from my Frigidaire furnace?
This often indicates an issue with the ignition system, such as a faulty ignitor or a dirty flame sensor. The furnace's safety features prevent the main burner from lighting if it doesn't detect a successful ignition sequence.
My Frigidaire furnace makes a clicking sound but doesn't ignite. What's wrong?
The clicking sound is typically the ignitor attempting to light the gas, which suggests the ignitor itself might be weak or failing. It could also point to a problem with the gas valve not opening or insufficient gas pressure reaching the burner.
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What it is, how urgent, who to call
Add a photo of your Frigidaire Furnace in the box at the top. The Triage Profile says what it is, how urgent it is, and who to call.