LG induction range
showing F33
LG lists F33 and F34 as front induction burner temperature sensor errors.
Mon–Sat, 8am–8pm
- Surface elements and induction
- Surface element and glass top repair
- Source: LG
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What F33
actually means.
LG lists F33 and F34 as front induction burner temperature sensor errors. Each zone has a sensor under the glass that protects the pan and the glass from overheating.
LG range display · also shown as F34
What to do when F33 shows on the rangeKind of codeSurface elements and induction
A radiant element, a coil or an induction zone did not heat the way the control expected, or ran hotter than it should. The pan, the switch behind the knob and the wiring to the element come first; on induction, the power board and the coil under the glass are checked next. A zone that will not switch off, or a crack in the glass, means the breaker goes off before anything else.
Usually leads toSurface element and glass top repair
Electric zones that stay cold, run too hot or will not switch off, and cracked or damaged glass on radiant and induction models.
Shows up asRange Surface Element Not Heating
One coil or glass-top zone on an electric range stays cold, heats only weakly, or will not respond while the others work.
MakeLG
A Korean electronics group selling freestanding and slide-in ranges on gas, electric and induction, many with Wi-Fi.
SourceLG Help Library "LG Range - Error Codes List" (Wayback copy, 23 Jun 2025)
Induction ranges only. Source for F33: LG's archived Help Library range list, which does not tie codes to models.
Before you book,
in this order.
Each step comes from LG's own guidance for F33 on its ranges. Follow it to the end: the last card says whether this is a visit.
Switch the breaker off, wait 30 seconds and restore power to clear F33.
Let the glass cool fully before using that zone again.
Book a visit if F33 or F34 returns.
Still there?
It usually turns into surface element and glass top repair. Book with the code and the model number.
What not to do
F33 is not a pan-detection problem; it is about the sensor under the zone.
What you may
notice with it.
The range problems F33 tends to arrive with. Answer these at the range before anyone is booked.
All problems
Range Surface Element Not Heating
6 causes, cheapest first
Where F33 usually leads
Surface element and glass top repair.
LG
ranges.
A Korean electronics group selling freestanding and slide-in ranges on gas, electric and induction, many with Wi-Fi.
LG range repairMore LG codes
All 14 LG codesSurface elements and induction on other makes
Gas range
Open flames on top and a gas-fired oven below, all fed by one supply line behind the range and lit by igniters rather than a match.
Electric range
Coil elements or radiant elements under a smooth glass top, with an electric oven below, all running on a dedicated 240-volt circuit.
Dual-fuel range
Gas burners on top and an electric oven below, the combination most professional-style ranges use, needing both a gas line and a 240-volt circuit.
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. Induction ranges only. Source for F33: LG's archived Help Library range list, which does not tie codes to models.
LG F33 range 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 still use the rear zones on my LG induction range with F33?
Did cooking with an empty pan cause F33 on my LG induction range?
Back to your everyday
Still showing F33?
Book with the code exactly as it appears, the full model number, and whether you notice any smell of gas or scorching — with a code, that is where the diagnosis begins.