Error code
Samsung range: Demo mode
Samsung range — reported by blinking lights rather than by a code. Demo mode lets a range light up and respond on a shop floor without heating anything.
- 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
What we can confirm
Code tESt, from the manufacturer's own documentation
This code has no number, because this equipment has no display to put one on. The appliance signals it instead — an alarm, a symbol or a pattern of lights — and what it means is recorded in the documentation that ships with it.
The code
tESt
Demo mode lets a range light up and respond on a shop floor without heating anything. On a range in a kitchen it produces a very specific and very confusing symptom: everything works, nothing gets hot. Gas cooktops will still ignite, which makes it more confusing still, because the top is clearly alive while the oven does nothing. Turning it off is model-specific and is in the manual.
or call (305) 506-1256
What it narrows down to
not an error — the appliance is in showroom mode and will not heat
Diagnostic
From $95, credited to the repair
On the same appliance
What else belongs to the ranges
On this make a code belongs to the appliance rather than to a product line. These are the other conditions this machine can display, and the models that can show this one — a display often has more than one thing to say, and the model number decides what any of it costs to put right.
Other codes this appliance can display
the cookware, not the appliance
not an error — a burner or element is still on
the divider that turns one oven into two
the door is not being seen as closed
the appliance is not properly connected to its supply
usually the test, not the oven
the vent behind the cooktop is blocked
two boards inside the appliance have stopped agreeing
the code is real, and Samsung publishes no procedure for it
The same digits mean different things on different equipment. Search the full code list
In more detail
About Samsung range: Demo mode
What the appliance is actually reporting
Demo mode lets a range light up and respond on a shop floor without heating anything. On a range in a kitchen it produces a very specific and very confusing symptom: everything works, nothing gets hot. Gas cooktops will still ignite, which makes it more confusing still, because the top is clearly alive while the oven does nothing. Turning it off is model-specific and is in the manual.
The other light combinations that mean this
tESt · tE5t
Samsung publishes forty light combinations for the dishwasher alone, and several of them mean the same thing. They are grouped here by what they mean rather than made into forty near-identical pages, and every combination the maker names is printed above.
Where this appears, and why not to clear it
On the cycle lights, on a machine with no digital display. Samsung publishes what each combination means, and on those models the combination is the entire diagnosis — it disappears the moment the power is cut. Write it down or photograph the panel before switching anything off. Samsung adds one caution of its own and it saves service calls: on some models the lights blink to show cycle status, so treat it as an error only if the machine is misbehaving as well.
What to do about it
- Confirm the display is showing tESt or tE5t rather than a code.
- Look up the demo mode procedure for your model; it differs across the range.
- If the oven heats normally after demo mode is off, nothing was ever wrong.
- If you have a range that will not heat, check this before anything else on this site.
Where this goes next
The job this usually becomes is diagnostic visit, and that page carries a starting figure and the reasons that move it. If it turns out to be nothing — and on this make a real share of these are modes, reminders and settings rather than problems — the visit ends there and you pay the diagnostic and nothing else, or call (305) 506-1256 and describe what the panel is doing before booking anything.
This article is based on:
- Official manufacturer documentation
- Internal repair procedures
- Technician repair history
- Company quality standards