LG induction stove shows F33 or F34 on a front zone
On LG's list, both F33 and F34 point at the heat sensor under a front induction zone.
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- Stovetop elements
- Glass stovetop repair
- Source: LG
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What F33
actually means.
On LG's list, both F33 and F34 point at the heat sensor under a front induction zone. The sensor under the glass guards against overheating; without it, the zone will not run.
LG stove display · also shown as F34
What to do when F33 shows on the stoveKind of codeStovetop elements
A burner on an electric or induction stovetop did not heat the way the knob or key asked, heated with nothing set, or ran hotter than the setting. The pan, a lock left on and the switch behind the knob are checked before the element under the glass, its limiter or an induction board is changed. If a burner keeps heating after it has been switched off, turn the stove's breaker off before anything else.
Usually leads toGlass stovetop repair
Smooth glass stovetops on electric and induction stoves with a cold circle, a cracked or chipped top, or a hot-surface light that stays on, repaired under the glass or with a new top.
Shows up asStovetop Not Heating
The burners on an electric, glass or induction stovetop stay cold or warm up only a little, sometimes all of them and sometimes two on one side, while the oven below may still work.
MakeLG
The Korean electronics maker whose freestanding and slide-in stoves often come with app controls.
SourceLG Help Library: range error codes list (Wayback, 23 Jun 2025)
LG's Help Library code list (Wayback copy of 23 June 2025); the list names no models, so the rating label decides whether your stove can show it. Induction models only.
Before you book,
in this order.
Each step comes from LG's own guidance for F33 on its stoves. Follow it to the end: the last card says whether this is a visit.
Turn the zone off and let the glass cool.
Flip the stove's breaker off, count 30 seconds, then flip it on.
Use the rear zones meanwhile, and book a visit if F33 or F34 returns.
What not to do
F33 does not mean LG dislikes your pan. The part at issue sits under the glass, where it measures the zone's heat.
What you may
notice with it.
The stove problems F33 tends to arrive with. Answer these at the stove before anyone is booked.
All problems
Stovetop Not Heating
6 causes, cheapest first
Where F33 usually leads
Glass stovetop repair.
LG
stoves.
The Korean electronics maker whose freestanding and slide-in stoves often come with app controls.
LG stove repairMore LG codes
All 15 LG codesStovetop elements on other makes
Gas stove
A stove with gas burners on top, whether its oven below runs on gas too or on electricity, fed by one gas line behind it and plugged into a wall outlet for the spark.
Electric stove
A stove that runs entirely on electricity through a heavy cord and a large outlet behind it, with coil burners that lift out or a smooth glass stovetop with elements under it.
Induction stove
A stove with a flat glass top that heats the pan itself through a magnetic field, run by touch keys and power boards, with an electric oven underneath.
In LG's own words
F33 indicates a Front Induction Burner Temperature Sensor Error
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. LG's Help Library code list (Wayback copy of 23 June 2025); the list names no models, so the rating label decides whether your stove can show it. Induction models only.
LG F33 stove repair,
where we come out.
The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions
about F33.
Can I clear F33 myself?
Can I use the back zones on my LG induction stove with F33?
Did I cause F34 on my LG by using a heavy pan?
Why does F33 show on my LG only after a few minutes of cooking?
Back to your everyday
Still showing F33?
Book with the code written exactly as the stove shows it, the full model number, and whether you notice any smell of gas or hot wiring — when there is a code, that is where the diagnosis starts.