- “One zone dead is better news than several: the shared parts are fine”
- “Induction has coils and sensors rather than elements — F33 and F34 are its codes”
- “On gas, cleaning the cap and ports fixes more of these than parts do”
Symptom
LG cooktop burner not working
One burner out of four is the good version of this problem, because it usually rules out everything shared — the supply, the board, the controls. What it points at depends entirely on the kind of top, and LG sells three: induction, radiant electric and gas.
- From $95 diagnostic, credited to the repair
- 59 cities and neighborhoods covered
- OEM parts available on order
- In writing the price, before anything is opened
Five ordinary causes
What this usually turns out to be
Cheapest and commonest first, which is also the order we check them in. They sit hundreds of dollars apart, and only the unit settles which one is yours.
-
The induction coil or its sensor
F33 and F34 are the front burner sensors. A single zone failing is the common shape.
Induction cooktop repair from $265 -
A radiant element
Fails open, and is measured rather than guessed at.
Cooktop element repair from $195 -
A gas burner cap seated crooked
Free to fix and responsible for a great many dead burners.
Range igniter replacement from $185 -
A blocked port
Something boiled over into the burner. A pin and a brush answer it.
Range igniter replacement from $185 -
The touch panel
F3, or LG's water-on-the-panel condition. The zone is fine and the control is not.
Cooktop element repair from $195
In five minutes
Before you call anybody
None of it needs tools, and all of it makes the visit shorter.
-
01
Try a different pan on the dead zone
On induction, a pan that is not magnetic will not heat and nothing is broken.
-
02
Swap the burner cap with a working burner
On gas. If the problem follows the cap, that is your answer.
-
03
Dry the whole panel and clear it
Water or metal in prolonged contact with the touch controls will disable them.
-
04
Note whether the zone lights up at all
A zone that acknowledges the touch and does not heat is different from one that does nothing.
How it shows up
What people describe when they call
A shortcut
Narrow it down before anybody arrives
A description of the behaviour leaves a few possible causes. A code names the subsystem before anybody opens anything, which is why it is worth photographing before it clears.
If there is no code at all
LDE3011ST
LDEL7324SE
LDG3011ST
LDGL6924S
LRE3012SB
LREL6321S
LREN6321VE
LRG3021ST
CBEW3013BE
CBGJ3023D
CBGS3028N
CBIH3017BE
On a range, the data plate is behind the kick panel or on the frame under the oven door. On a cooktop, the data plate is under the front edge. All models
In more detail
About LG cooktop burner not working
Which kind of top do you have?
This matters more than anything else on the page. Induction heats the pan and leaves the glass cool — a pan of water boils and the surface beside it is barely warm. Radiant heats the glass red and the glass heats the pan. If you are not sure, put a magnet on the surface and heat a pan: if the glass around the pan stays cool, it is induction, and the whole diagnosis below changes.
What it usually means, by the kind of LG appliance
LG sells one appliance in several forms — five shapes of washer, three kinds of dryer, four fuels of range — and the same behavior points at different things on each of them. A built-in side-by-side and an integrated column are not the same service situation, and a dual-fuel range and an induction range fail in different halves.
- Induction — No element to fail. A coil, its sensor or the board section that drives it, and a single zone is the most likely.
- Radiant electric — An element under the glass. They fail open, which is measurable, and the connector under them corrodes.
- Gas — Igniter, burner cap seating, or a blocked port. Cleaning is the first answer and usually the last.
Induction is a different appliance
A radiant cooktop makes heat and passes it to the pan. An induction cooktop makes a magnetic field and the pan makes the heat itself. That means there is no element to burn out, but there is a coil, a control board section and a temperature sensor for every zone — and it means a pan that is not ferrous simply will not work, which is the most common non-repair we are called out for on these.
Gas, and why cleaning is the answer
A sealed gas burner has a cap that has to sit flat and square on its base, and a ring of small ports that carry the flame around. Anything that boils over goes into those ports, and anything that gets moved when the hob is cleaned goes back slightly wrong. Between them those two account for most dead gas burners, and both are free to put right with a brush, a pin and five minutes.
This article is based on:
- Official manufacturer documentation
- Internal repair procedures
- Technician repair history
- Company quality standards
Before you book
Questions about LG cooktop burner not working
It clicks constantly and will not light.
Spark is arriving and gas is not, or the switch that stops the sparking is not seeing a flame. Nine times out of ten it is a wet or crooked burner cap — in this climate, moisture in the assembly after cleaning is a genuine cause. Take the cap off, dry everything, clear the ports and seat it squarely.
The whole cooktop stopped at once.
Then it is shared, and the list is short: the supply, the main board, or the touch control. On an electric range it is worth checking whether the oven still works, because they share the same feed and that answers half the question.
Where we do it
Across Miami-Dade, Broward, and Palm Beach
Same terms everywhere we go: an on-site diagnostic first, the price agreed in writing, and the exact figure confirmed once we have seen the unit.
Neighborhoods people ask for by name