A gas igniter often fails to light because food debris or grease blocks the tiny gas hole next to the electrode, moisture from spills disrupts the spark, or the igniter itself is worn out.
A gas stove that sparks but won't light is usually caused by misaligned burner parts, excess moisture, or clogged gas ports. To fix it, ensure your burner cap is sitting perfectly flat, and use a needle or paperclip to clear the tiny gas hole that feeds the igniter.
A gas oven igniter replacement costs $150 to $350 on average, depending on your appliance's make, model, and whether you do it yourself or hire a professional.
Disconnect and Remove the Old Ignitor: Unplug the wire connector for the ignitor and carefully unscrew the bracket holding it in place. Install the New Ignitor: Screw the new ignitor into place and connect the wiring. Safety Reminder: Never touch the gray or black part of the new ignitor with your bare hands.
A bad ignitor usually causes your appliance to click repeatedly without starting, emit a buzzing sound, or blow cold air. For a definitive test, turn off the power, detach the ignitor wires, and use a multimeter set to ohms to check for resistance (typically 40 to 400 ohms); an infinity or "OL" reading means it is dead.
An ignitor typically costs $15 to $100 for the part itself. However, total repair costs depend on whether you are replacing a furnace ignitor or an oven ignitor, and whether you hire a professional or do it yourself.
Furnace Ignitor Maintenance
Ignitor is cleaned: Dirt or debris are gently removed from the ignitor using a soft brush or cloth. Abrasive materials that may damage the ignitor. Inspection for wear and tear: The ignitor is checked for any signs of wear and tear, such as cracks or corrosion.
A gas fireplace igniter not sparking is often a simple fix. First, determine the power source for your ignition. If your igniter uses a battery (usually hidden behind or under the main button cap), replace it with the negative side inserted first. For manual (piezo) igniters, press the button firmly.
Should I Repair or Replace my Oven? Oven repair costs range from $150 to $400, making repairs more affordable than replacement when your oven needs simple fixes or parts. You should replace your oven when repair costs exceed 50% of a new unit's value, especially if your appliance is over 15 years old.
Gas oven igniters often fail repeatedly due to using low-quality aftermarket parts, electrical surges, improper installation (like touching the element with bare hands), or a faulty gas safety valve drawing too much current. The most common causes are a weak igniter failing to open the gas valve, or the igniter being positioned incorrectly near the burner.
A furnace ignitor typically lasts between 3 to 7 years, though exact lifespan depends on its material.
If your gas appliance (stove or furnace) igniter is not clicking, it usually means there is a loss of power, a blocked switch, or a faulty component.
It takes 30 minutes to 2 hours to fully air out a house, depending on the length of time the burner was on and the amount of airflow. Natural gas and propane both have a strong, sulfur-like odor (rotten eggs) added to them, making it easy to know when the air has cleared.
No, a gas oven typically won't work without electricity, as most modern models require an electric ignition to operate. While you can often manually light the burners on a gas cooktop, the oven itself usually needs power for ignition and controls and it's not possible to light a gas oven with an electric starter.
A bad hot surface igniter (commonly used in furnaces and ovens) may show a physical break, hairline fracture, white burnt-out lines, or dark scorched spots. In many cases, it will simply fail to glow bright orange-yellow when the appliance attempts to start, or it will only glow dimly.
Consider the 50% Rule—If the cost of repairs is more than half the value of the oven, it's usually better to replace it. Additionally, if the oven no longer meets your household's cooking needs, it likely warrants a replacement.
The heat exchanger is often considered the most costly part of a furnace to repair or replace. It is a critical component that transfers heat from the combustion process to the air that circulates throughout your home. Over time, heat exchangers can crack due to the constant heating and cooling cycles they undergo.
The cost to fix furnace ignitor typically ranges from $150 to $425, with most of our customers paying around $300 for a complete professional replacement.
Without the ignitor, your heater won't blow hot air. It's a critical part of the furnace system since it is responsible for lighting the burner that starts the combustion process that turns fuel into heat. In older units, the furnace ignitor is a traditional pilot light.
Hot Surface Ignitors (HSI)
If your faulty furnace ignitor is an HSI, then there is no good way to repair it. You'll need your furnace brand, the model and serial number, and a few decent tools to replace it.