Ignition System Repair
Furnace Ignitor Repair in Sioux Falls, SD
The hot surface ignitor is one of the hardest-working and most failure-prone parts in a residential furnace. When it cracks, the burner never lights — and the house goes cold fast.
For service availability, please have your 5-digit ZIP code ready.
How a Hot Surface Ignitor Fails
A hot surface ignitor is a brittle silicon carbide or silicon nitride element that glows bright orange to light the burner. Every heating cycle heats and cools it, and after thousands of cycles the material develops micro-cracks and finally breaks.
In Sioux Falls, a furnace can run tens of thousands of cycles across a long heating season, which is why ignitors commonly need replacement somewhere in the 4-to-8-year range even on well-maintained systems.
Signs Your Ignitor Is Failing
- The furnace tries to start three times, then locks out with a flashing error code.
- You hear the inducer run and the gas valve click, but no flame appears.
- The ignitor glows weakly or unevenly compared with normal bright orange.
- Heat works after a reset but fails again within a day or two.
- A visible crack or white deposit is present on the ignitor element.
Ignitor Replacement Done Correctly
Ignitors are fragile and position-sensitive. Touching the element with bare fingers deposits oils that create hot spots, and installing it even slightly out of alignment causes delayed ignition or repeat failure. We install the correct part number for your furnace, seated to manufacturer spec, and verify resistance and current draw.
We also look for the reason it failed. Frequent short cycling, high gas pressure, or airflow restriction shortens ignitor life dramatically, so fixing only the ignitor can mean another failure the same winter.
What to Expect From the Service Visit
Real diagnosis first
Plain-language explanation
Price before the work
Homeowner Questions
Frequently Asked Questions
How long does a furnace ignitor last?+
Commonly four to eight years in a South Dakota heating climate, though short cycling and airflow problems shorten that considerably.
Can I replace a furnace ignitor myself?+
It involves gas-fired equipment and correct part matching. If you are not comfortable working around the burner assembly and verifying safe operation afterward, have it done professionally.
How much does ignitor replacement cost?+
It is typically a mid-range residential repair. Our cost calculator gives you a planning range by furnace type, age, and whether the visit is after hours.
Why did my new ignitor fail so quickly?+
Usually because the underlying cause was never corrected: restricted airflow, excessive short cycling, an incorrect part, or contamination during installation.
Do all furnaces use hot surface ignitors?+
No. Older furnaces may use a standing pilot or intermittent pilot with a spark ignitor. We service all three ignition styles on residential equipment.
Local Contact
Reach a Residential Furnace Technician
For service availability, please have your 5-digit ZIP code ready.
What to have ready
- Your 5-digit ZIP code so we can confirm service availability.
- Furnace brand and approximate age, if you know them.
- What the system is doing: no heat, cold air, noise, or repeated cycling.
- Whether the thermostat screen is on and what it is set to.
Keep Reading
Related Residential Furnace Pages
Need Furnace Repair in Sioux Falls Today?
Residential-only service, 24/7 emergency availability, and a free quote over the phone. Tell us what your furnace is doing and we will walk you through next steps.
For service availability, please have your 5-digit ZIP code ready.