LG range
showing F9
LG uses F9 when the upper oven is not heating properly; F6 is its upper oven heating error, and F19 an oven heating error.
Mon–Sat, 8am–8pm
- Oven heating
- Bake and broil elements
- Source: LG
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What F9
actually means.
LG uses F9 when the upper oven is not heating properly; F6 is its upper oven heating error, and F19 an oven heating error. In each case the control called for heat and did not see the temperature follow.
LG range display · also shown as F6, F19
What to do when F9 shows on the rangeKind of codeOven heating
The oven under the burners called for heat and the cavity did not warm the way the control planned. On an electric oven a bake or broil element that has burned open is the usual cause; on a gas oven the igniter and the valve it opens come first. The wiring and the relay are checked before the board takes the blame.
Usually leads toBake and broil elements
An electric range oven that stays cold, heats only from above or below, or will not broil, traced to the elements, their terminals or the relay that switches them.
Shows up asRange Oven Not Heating
The burners or elements on top work, but the oven below stays cold, heats only a little, or never finishes preheating.
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)
F9 is on LG's Help Library list of range codes, archived on 23 Jun 2025; the list names no models.
Before you book,
in this order.
Each step comes from LG's own guidance for F9 on its ranges. Follow it to the end: the last card says whether this is a visit.
Press CLEAR/OFF and restart the cooking mode.
If the code reappears, switch the breaker off for 30 seconds.
On a gas or dual-fuel range, do not open panels; book a visit if F9 persists.
What not to do
F9 is not a sensor code; sensor problems show as F1, F2, F4 or F5.
What you may
notice with it.
The range problems F9 tends to arrive with. Answer these at the range before anyone is booked.
All problems
Range Oven Not Heating
7 causes, cheapest first
Where F9 usually leads
Bake and broil elements.
LG
ranges.
A Korean electronics group selling freestanding and slide-in ranges on gas, electric and induction, many with Wi-Fi.
LG range repair
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
F9 indicates the Upper Oven Is Not Heating Properly.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. F9 is on LG's Help Library list of range codes, archived on 23 Jun 2025; the list names no models.
LG F9 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 F9.
Can I clear F9 myself?
What part usually causes F9 on an LG range?
Can a power reset really fix F9 on my LG range?
Back to your everyday
Still showing F9?
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.