LG refrigerator
showing C1
C1 means the LCD display and the dispenser have stopped exchanging information.
Mon–Sat, 8am–8pm
- Communication
- Controls and sensors
- Source: LG
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What C1
actually means.
C1 means the LCD display and the dispenser have stopped exchanging information. It is a communication problem between parts, not a temperature reading. LG lists no owner steps for it.
LG refrigerator display · also shown as c1
What to do when C1 shows on the refrigeratorKind of codeCommunication
Two boards that stopped hearing each other — the main control and the display, or the inverter. A harness is checked before a board.
Usually leads toControls and sensors
A refrigerator cools to what it believes the temperature is, and a sensor reading wrong is obeyed perfectly.
Shows up asRefrigerator Control Panel Not Responding
Buttons do nothing, the display is blank or frozen, or settings will not hold.
MakeLG
French door refrigeration with linear compressors and heavily instrumented controls.
SourceLG US support: refrigerator error code list (Wayback copy, Feb 2024)
Models with an LCD display and a door dispenser.
Before you book,
in this order.
Each step comes from LG's own guidance for C1 on its refrigerators. Follow it to the end: the last card says whether this is a visit.
Note the code and whether the dispenser still responds.
Record any recent power cut or surge.
Book a repair visit.
What not to do
It is not CO. CO is the link between the main control board and the display; C1 is the link between the display and the dispenser. Wiring between the two is checked before a board is replaced.
What you may
notice with it.
The refrigerator problem C1 tends to arrive with. Answer these at the refrigerator before anyone is booked.
All problems
Where C1 usually leads
Controls and sensors.
Read these
before the visit.
Short guides that make the call quicker and the diagnosis cheaper.
All guidesLG
refrigerators.
French door refrigeration with linear compressors and heavily instrumented controls.
LG refrigerator repairMore LG codes
All 14 LG codesCommunication on other makes
In LG's own words
A C1 error code indicates a communication error between the LCD display and the dispenser.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Models with an LCD display and a door dispenser.
LG C1 refrigerator 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 C1.
Can I clear C1 myself?
Does C1 on my LG affect cooling?
How is LG C1 different from CO?
Back to your everyday
Still showing C1?
Book with the exact characters, the full model number, and whether it is still cooling — on a code, that is the whole starting point.