What does LG Oven Igniter Not Working - Causes & Fix mean?

Most LG gas ovens fail to ignite when the bake igniter is too weak to draw enough current to open the valve. Replace the igniter.

How do I fix LG Oven Igniter Not Working - Causes & Fix?

Work through the step-by-step fix below. Start with the quick reset and the most common cause, then check the specific part this guide points to. Most fixes need only basic hand tools and the right replacement part.

Can I keep using my LG appliance with this error showing?

Usually not. LG appliances show this error when a part or safety circuit is out of range, so running it can stop the cycle or make the problem worse. Diagnose and clear the error before normal use.

What part is most commonly replaced for LG Oven Igniter Not Working - Causes & Fix?

The parts that most often fix LG Oven Igniter Not Working - Causes & Fix are listed in the parts section of this guide. Match the part to your exact model and serial number before you buy.

Is LG Oven Igniter Not Working - Causes & Fix a DIY repair or do I need a technician?

Many fixes are DIY-friendly with basic tools, such as door switches, drain pumps, water inlet valves, thermostats, heating elements, and filters. Sealed-system, refrigerant, gas, or high-voltage work should go to a licensed technician for safety.

LG Oven Igniter Not Working - Causes & Fix

LG Oven Igniter Not Working — What’s Happening

When your LG gas oven igniter is not working, the range calls for bake heat but the oven does not light. In many LG models this registers as fault code F-09 or F9, which service documentation identifies as an ignition failure in the bake igniter circuit. The igniter may not glow at all, or it may glow orange for a long time without ever opening the gas valve to let flame establish.

The igniter is a ceramic heating element that must pull enough electrical current to both heat itself and energize a coil inside the gas valve. If the igniter is weak, it will glow but fail to draw the threshold current needed to open the valve. Wiring problems, relay failures on the main control board, or a closed gas supply can produce the same symptom.

Jump to Fix

Most Likely Causes

Weak or failed bake igniter The igniter has aged and no longer draws the minimum 3.5 amps required to open the gas valve, so it glows for more than 90 seconds without igniting the burner.
Loose, burnt, or damaged igniter wiring Corroded terminals, pinched wires, or a loose connector in the igniter harness prevent proper current flow to the igniter.
Failed relay or main control board The bake relay on the PCB is not sending voltage to the igniter circuit, so the igniter receives no power when you call for heat.
Gas supply shut off or interrupted The house shutoff valve or the range gas valve is closed, or gas delivery has been interrupted, so even a working igniter cannot light a flame.
Dirty, wet, or misassembled burner parts In models with spark-style ignition components, debris or moisture on the burner assembly blocks the spark path and prevents ignition.

How to Diagnose and Fix

Call for bake and observe whether the igniter glows and whether the oven burner lights within 90 seconds.
Check that the house gas shutoff and the range gas valve behind the appliance are fully open, and confirm that surface burners light normally.
Inspect the igniter wiring harness and connector for burnt terminals, loose plugs, or damaged conductors.
Measure igniter current draw with a clamp meter while the igniter is glowing (field standard is at least 3.5 amps to open the valve).
If the igniter glows for more than 90 seconds without flame, replace the bake igniter.
If the igniter does not glow at all and wiring is intact, test for voltage at the igniter connector to isolate a control-board relay failure.
Replace the main PCB if the board is not supplying voltage to a good igniter and harness.
After any repair, run a bake cycle and confirm the igniter heats, the valve opens, and flame establishes normally.

Parts You Might Need

Part	Notes
LG oven bake igniter	Amazon \| Primary replacement part for F-09 ignition faults. On some LG models the broiler igniter is the same part.
LG range main control board (PCB)	Amazon \| Required if the bake relay has failed and the board does not energize the igniter circuit.

If your appliance also shows a code on the display, these match this problem:

When to Call a Pro

Gas appliance ignition work involves working around open flame, testing live circuits under load, and verifying proper combustion. If you are not comfortable measuring igniter current, accessing the bake-burner compartment, or confirming that gas flow and flame pattern are correct after repair, call a qualified appliance technician. A pro can also diagnose relay and control-board faults quickly and will have the correct replacement igniter and harness connectors on the truck. For gas line, burner, or igniter work, or if you ever smell gas, stop and call a licensed technician.