Error code
Range: Sabbath mode
LG range — reported by blinking lights rather than by a code. Sabbath mode holds the oven at a fixed temperature and switches off the timer, the light and the alarms so it can run without any of the actions the observance excludes.
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What we can confirm
Signal 5b, 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 signal
5b
Sabbath mode holds the oven at a fixed temperature and switches off the timer, the light and the alarms so it can run without any of the actions the observance excludes. It is easy to turn on by accident and hard to guess your way out of, which is why an oven that has stopped responding to its own controls is often just this. LG publishes the exit and it is specific enough to be worth quoting: press Bake, set a temperature, press Start, then hold Clock for three seconds.
or call (305) 419-0291
What it narrows down to
Not an error — the oven is in a mode that disables most of its controls
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 sensor measuring the main oven cavity has gone out of range
The same sensor problem, in the lower cavity
The cavity is not reaching or holding the temperature it was set to
The motorized lock has not reported that it did what it was told
The control and the display are not talking
The oven has rejected its temperature sensor's reading
The fan that moves air around the cavity is not turning
The temperature probe socket is reporting a problem
The steam system's own sensing has failed
The fan that keeps the surrounding cabinet cool has stopped while the oven was at its hottest
The touch controls are reporting a key that is stuck or wet
An induction zone cannot measure its own temperature
The same digits mean different things on different equipment. Search the full code list
In more detail
About Range: Sabbath mode
What the appliance is actually reporting
Sabbath mode holds the oven at a fixed temperature and switches off the timer, the light and the alarms so it can run without any of the actions the observance excludes. It is easy to turn on by accident and hard to guess your way out of, which is why an oven that has stopped responding to its own controls is often just this. LG publishes the exit and it is specific enough to be worth quoting: press Bake, set a temperature, press Start, then hold Clock for three seconds.
The other light combinations that mean this
5b · Sb · SB
LG publishes what the indicator lights mean on the washers and dryers that have no numeric display. They are grouped here by what they mean rather than split into near-identical pages, and every pattern the maker names is printed above.
Where this appears, and why not to clear it
On the indicator lights, on a laundry machine with no numeric display. LG publishes what the patterns mean, and on those models the pattern is the entire diagnosis — it disappears the moment the power is cut. Write it down or photograph the panel before switching anything off, and count a full sequence rather than a single flash: the lights also blink to show cycle status, so treat it as an error only if the machine is misbehaving as well.
What to do about it
- Press Bake.
- Set a bake temperature with the + and - keys.
- Press Start.
- Press and hold Clock for three seconds. The oven should return to normal.
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) 419-0291 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