LG Oven Not Heating
On an electric oven the bake element is the usual failure and it is often visible — look for a blister, split or bright scorch mark along the coil. On a gas oven the igniter is the usual cause: a weak igniter still glows but never gets hot enough to open the gas valve, so the burner never lights. Both faults can also present as an oven that heats but will not hold temperature, which points to the sensor instead.
Typical repair
$195–$420
incl. $75–$120 call-out
Usual part
Bake or broil element
$120–$300 parts & labour
Safe to check yourself
1 of 5
causes, before calling out
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1-888-298-3714Why a LG oven stops heating
Ordered by how often each one turns out to be the cause.
Failed bake element (electric ovens)
You can check thisThe element blisters or splits at a hot spot and the circuit opens. Damage is often visible without any tools.
What to do: With the oven cold and off, look along the element for a break, blister or scorch. Visible damage confirms it.
Weak or failed igniter (gas ovens)
TechnicianThe igniter must draw enough current to open the safety valve. As it ages it still glows but no longer reaches that threshold — so it looks like it is working while the burner never lights.
How it is diagnosed: A glowing igniter that does not produce flame within about 90 seconds is the classic signature. Replacement is technician work.
Failed temperature sensor
TechnicianThe sensor tells the control how hot the cavity is. When it drifts, the oven under-heats, over-heats or will not hold a setting.
How it is diagnosed: A technician measures the sensor resistance cold and compares it against the manufacturer specification.
Tripped breaker or lost supply leg
TechnicianAn electric range uses 240 volts. Losing one leg can leave the clock and lights working while the oven element gets nothing.
How it is diagnosed: Reset the double breaker fully. If it recurs, the supply needs an electrician.
Control board or relay failure
TechnicianThe board switches power to the element or valve. A failed relay means the command is issued but never reaches the element.
How it is diagnosed: A technician reads the fault code and checks for switched voltage at the element terminals.
Before you start
- Switch the oven off at the breaker before touching any element or wiring. Electric ranges carry 240 volts.
- Gas ovens: do not attempt igniter, valve or burner work. If you smell gas, leave the property and call your gas utility before anyone uses a phone or switch indoors.
- Let the cavity cool completely before inspecting an element.
- Do not run a gas oven with the door open to heat a room — it produces carbon monoxide.
What is specific to LG
LG ranges most often fail at the bake element and the temperature sensor; gas models fail at the igniter.
All LG oven repairWhat the repair costs
| Diagnostic call-out | $75–$120 |
|---|---|
| Bake or broil element — parts and labour | $120–$300 |
| Typical total | $195–$420 |
| Comparable new unit | $700–$2,200 |
| Typical service life | 15 years |
Typical national ranges, not a quote. True Appliance Repair connects you with independent local technicians — the price depends on your model and what the technician finds.
Common questions
Why is my LG oven not heating?
Failed bake element (electric ovens) is the most common cause. The element blisters or splits at a hot spot and the circuit opens. Damage is often visible without any tools.
How much does it cost to fix a LG oven that is not heating?
Expect roughly $195–$420 for a typical repair, covering the bake or broil element plus labour and the $75–$120 diagnostic call-out. Parts and labour alone run $120–$300. These are typical national ranges, not a quote — the actual price depends on your model and what the technician finds.
Is it worth repairing, or should I replace it?
A repair at $195–$420 is well under half the $700–$2,200 cost of a comparable new unit, so repair is usually the economical choice within the 15-year typical service life. Past that age the calculation shifts toward replacement.
Can I fix this myself?
1 of the 5 common causes are safe to check yourself, starting with failed bake element (electric ovens). The remainder involve testing components under power and should go to a technician. Switch the oven off at the breaker before touching any element or wiring. Electric ranges carry 240 volts.
How long does the repair take?
Most oven repairs of this type are completed in a single visit once the fault is confirmed, provided the part is a common one. Parts for this repair are usually stocked or available quickly.
Is there anything specific to LG with this fault?
LG ranges most often fail at the bake element and the temperature sensor; gas models fail at the igniter.
Still not fixed?
Tell us what your LG oven is doing and we will connect you with a local technician who repairs LG ovens every day.
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