Error code
Refrigerator error code rT
LG refrigerator error code rT: A modern refrigerator adjusts what it does to the kitchen around it — how long to run, how often to defrost, when to worry about condensation on the door mullion. Every spelling LG publishes for it, which machines can raise it, and what to do next.
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What we can confirm
Code rT, from the manufacturer's own documentation
A code is only meaningful together with the machine showing it — the same digits mean different things on different equipment.
The code
rT
A modern refrigerator adjusts what it does to the kitchen around it — how long to run, how often to defrost, when to worry about condensation on the door mullion. The ambient sensor is how it knows. Losing it is not dramatic and nothing thaws, but the machine stops being clever: it runs to a fixed pattern, which in a Miami summer means it is guessing low on a day when it should be working hard. LG's own note is exactly that — performance drops rather than stops.
or call (305) 419-0291
What it narrows down to
The machine cannot read the temperature of the room it is standing in
Diagnostic
From $95, credited to the repair
On the same appliance
What else belongs to the refrigerators
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 fan over the condenser has stopped turning, and the machine has noticed
The fan that moves cold around the freezer is not turning
The fan feeding the fresh food side has stopped
The sensor reporting the freezer temperature is not making sense
The fresh food compartment's own sensor is not reporting properly
The sensor that decides when to melt the ice off the coil has failed
The fan that carries cold to the ice maker has stopped
The ice maker cannot tell whether the cubes are frozen yet
The ice maker's own motor is not turning the harvest
The internal water tank is missing or not seated
The main board and the display have stopped talking to each other
The refrigerator has found something wrong inside itself and wants a technician
The same digits mean different things on different equipment. Search the full code list
In more detail
About Refrigerator error code rT
What rT means on this make
A modern refrigerator adjusts what it does to the kitchen around it — how long to run, how often to defrost, when to worry about condensation on the door mullion. The ambient sensor is how it knows. Losing it is not dramatic and nothing thaws, but the machine stops being clever: it runs to a fixed pattern, which in a Miami summer means it is guessing low on a day when it should be working hard. LG's own note is exactly that — performance drops rather than stops.
The other ways LG prints this one
rT · Er rT
LG publishes a condition and then every string that can stand for it, and which one your machine shows depends on the panel it was built with — OE, E03 and E21 are one condition on a washer, and Er dS, F dS and r dS are one sensor on different evaporators. They are one page here, so whichever of them you searched for, this is the right page.
Where this appears, and why not to clear it
On the appliance's own display. LG reports errors two ways: machines with a digital display show a code, and the laundry machines without one blink their indicator lights instead. Both are published by the maker and both are on this site. Photograph what the panel shows before cutting the power. On a refrigerator you can also force the last code back onto the display by holding Freezer Temperature and Express Frz together for three seconds — LG documents that, and it is the one thing that makes a first visit more useful. A code that has been reset is information a technician no longer has.
What to do about it
- Check the machine is not standing somewhere it was never meant to, like a hot garage or against an oven.
- Cut the power for five minutes.
- If the code returns, book it — but this one is not an emergency and can wait for a convenient day.
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