

Samsung stove shows tESt and will not heat
tESt means Demo mode is on.
Mon–Sat, 8am–8pm
- Mode, not a failure
- No repair needed
- Source: Samsung
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What tESt
actually means.
tESt means Demo mode is on. The display and keys work, but the oven and electric elements stay cold, while gas burners on a gas model still light. Samsung's user manual for your model gives the key sequence to turn it off.
Samsung stove display · also shown as tE5t
What to do when tESt shows on the stoveKind of codeMode, not a failure
Something the stove was switched into, often by accident, rather than something that broke: a control lock pressed while wiping the panel, a Sabbath setting, a showroom demo mode that lights the display and heats nothing, a reminder that a spot on the stovetop is still hot. No part is worn out, and the stove's own keys put it right.
Usually leads toNo repair
Look for tESt or tE5t on the display to confirm it is Demo mode.
Shows up asOven on My Stove Won't Heat Up
The burners on top work, but the oven underneath stays cold, heats only a little, or never reaches the temperature you set.
MakeSamsung
The Korean electronics maker, whose stoves come in gas, electric and induction models, many app-connected.
SourceSamsung support: range or wall oven error codes
Samsung US support article on oven and stove codes; how to leave Demo mode differs by model.
Before you book,
in this order.
Each step comes from Samsung's own guidance for tESt on its stoves. Follow it to the end: the last card says whether this is a visit.
Look for tESt or tE5t on the display to confirm it is Demo mode.
Follow the Demo mode steps in your model's Samsung user manual to switch it off.
Run the oven for a few minutes to make sure it heats, and book a visit if the display keeps returning to Demo mode.
Cleared?
The stove is working again and no part was needed. If the same letters come back while a burner or the oven is on, or the stove switches itself off again in the middle of dinner, book it as a new problem.
What not to do
tESt is not a broken heating element or igniter. Nothing needs replacing until Demo mode is turned off and the stove is tried again.
What you may
notice with it.
The stove problems tESt tends to arrive with. Answer these at the stove before anyone is booked.
All problems
Oven on My Stove Won't Heat Up
6 causes, cheapest first
No repair indicated
Nothing to repair.
Something the stove was switched into, often by accident, rather than something that broke: a control lock pressed while wiping the panel, a Sabbath setting, a showroom demo mode that lights the display and heats nothing, a reminder that a spot on the stovetop is still hot. No part is worn out, and the stove's own keys put it right.
Samsung
stoves.
The Korean electronics maker, whose stoves come in gas, electric and induction models, many app-connected.
Samsung stove repairMore Samsung codes
All 15 Samsung codesMode, not a failure on other makes
All 53 codes of this kind
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 Samsung's own words
The range is in Demo mode. The oven and cooktop will not heat. (Gas cooktops will still ignite.)
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Samsung US support article on oven and stove codes; how to leave Demo mode differs by model.
Samsung tESt 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 tESt.
Can I clear tESt myself?
Why do the burners on my Samsung gas stove light but the oven stays cold with tESt showing?
How did my Samsung stove get into Demo mode?
Can a power outage put my Samsung stove into tESt mode?
Back to your everyday
Still showing tESt?
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.