LG Refrigerator Error Codes List: Every Code Explained

Every LG refrigerator error code we could verify against LG's own documentation — what it means, what usually causes it, and the first fix to try — in one table. Codes differ between model series, so treat your model's tech sheet as the final word.

How to read and retrieve error codes on LG refrigerators

LG refrigerators have a test mode on the main board (a test button on the PCB steps through test 1/2/3 states: compressor and fans forced on, then defrost forced, then display test) which technicians use together with the blink pattern of the board's LED — on inverter models the LED blink count on the main PCB is itself a fault code (this is where '6 blinks' style codes come from). The board sits under the rear cover; treat it as live mains circuitry.

The complete LG refrigerator error code list

How to reset / clear error codes on LG refrigerators

LG refrigerator error codes (the Er family) clear with a power reset: unplug for about 5 minutes (or hold the control's reset where fitted) and restore power. Fan and sensor codes that return after the reset are active faults — the board re-tests fans and thermistors continuously. Note that after any reset the cabinet needs several hours to pull temperatures back down, so judge the result by whether the code returns, not by instant cooling.

How to diagnose any LG refrigerator code

Work the problem in this order: (1) record the code exactly — on segment displays, note which segments are lit, because refrigerator codes are often shown as lit/unlit segment patterns rather than letters; (2) check the temperatures with a thermometer, not the display, and note which compartment is wrong — fridge codes split by compartment and system (fan, defrost, sensor, ice maker); (3) run the external checks: door seals closing fully, vents inside the compartments unblocked by food, condenser area clean, and the machine level so doors self-close; (4) force the brand's diagnostic/defrost mode if the code family points that way, and listen — a fan fault you can hear (or not hear) settles the question faster than a meter; (5) test sensors and fans before condemning a control board, and give any defrost-related fix a full 24 hours before judging it. Food safety first: if the fridge compartment is above 40°F / 4°C for more than a few hours, perishables are at risk regardless of the code.

The most searched LG refrigerator codes, in detail

CF — Condenser fan error

The fan in question is the one in the machine compartment at the bottom rear of the refrigerator, beside the compressor — its job is to disperse the heat the compressor and condenser produce. LG's own cause list for Er CF has exactly three entries: usually a fan motor failure, but sometimes a wire disconnection, or a problem with the main board. LG's service documentation for the same code (its error table lists 'Abnormality of BLDC FAN Motor for Mechanic Room — Er CF') adds the detection logic: the control watches for the fan's feedback signal while the motor runs, and the code sets when that signal does not arrive as expected — which is why a disconnected wire produces the same code as a dead motor. Two pieces of internet folklore about this code are wrong and worth retiring: Er CF is not a communication failure (that is Er CO, a different code in the same table), and it is not a frost or evaporator-fan problem (those are the FF/IF family, inside the cabinet — CF's fan never sees frost, it lives in the warm machine compartment). LG also documents this code's most confusing behaviour: turn the power off and on and the error disappears — then, if the fault is still present, it appears again 3 hours later. The renderings deserve a paragraph because they generate the searches: LG's refrigerator panels place the error marker differently, so the same fault is transcribed as CF, E CF, CF E and Er CF — LG's own page title for it is 'Troubleshooting an E CF Error Code', its first line speaks of '[ER(E) CF]' on the display, and owners of French-door models describe CF sitting under one compartment label with an E under the other. All of them are the one mechanical-compartment fan fault, exactly as the IF/1F family taught refrigerator owners earlier in this site: the E is the panel's error marker, not a second code. LG's service table also settles what the control is actually watching — the fan motor's feedback signal while it operates — which explains the code's signature patience: a fan can be commanded, fail to report, and be given time to prove itself across a run before the display commits, which is why the documented rhythm of this code is measured in hours rather than seconds.

Most likely cause: Fan motor failure — LG's usual cause: the mechanical-compartment (condenser) fan motor itself has failed and does not operate.

First check: Do LG's power reset first and time what happens: unplug the power cord (or trip the dedicated breaker) and reuse the refrigerator after about 5 minutes. If CF returns about 3 hours later, LG has already told you the fault is real and repeating — the reset was the test, not the fix.

If it keeps coming back: CF returning on the 3-hour rhythm after a fan replacement points back down LG's own list: the wiring run to the fan, then the main board. Report the timing pattern to the technician — it is the signature of this code's detection cycle. CF's return has a timetable, and the timetable is the diagnosis. Back inside roughly 3 hours of a power reset, repeatedly, is the code's documented signature for a persisting fan fault — after one such cycle the reset experiment is over and the fan/wiring/board list is worked in order. A CF that returns only days later, or only in hot weather when the compressor runs longest, is the marginal version of the same list (a motor failing under sustained load, a connection opening with heat): report the conditions, not just the count. And a CF that never returns after an obstruction was cleared was the held-fan case — note what was found, because the same packaging or debris story tends to repeat after any work that opens the compartment again.

CL — Not a published LG refrigerator fault code. LG's refrigerator manuals document CL's home territory as a panel state

Two different displays are being filed under one search phrase, and they have opposite urgencies, so the first job is telling them apart. The first reading is the lock. LG has fitted a panel lock to its refrigerators for decades, under three names across the generations: older manuals call it CHILD LOCK (press and hold the CHILD LOCK button for 3 seconds; the Lock LED lights and the other buttons will not operate; hold 3 seconds again to unlock), French-door manuals call it Control Lock (press and hold the Lock button for three seconds or more; the Lock icon displays and every other button on the display is disabled; hold about three seconds to disable), and side-by-side manuals describe the same Lock function with a tell-tale behaviour — press any other button while the lock is set and the Lock/Unlock icon flashes 3 times. On most refrigerator panels the lock announces itself with that icon rather than with the letters CL, which is one reason owners go looking for a code: the panel seems dead or unresponsive, the dispenser may not respond, and nothing in the kitchen vocabulary says 'icon means lock'. The letters CL belong, in LG's own documentation, to laundry: on LG washers and dryers CL is the displayed Child Lock reading. An owner who knows CL from the laundry pair understandably searches for it on the fridge — and the fridge's answer is the same idea in icon form, not a fault. The second reading is the one that arrives as 'CL E', 'E CL' or 'CLE'. Here precision matters. LG's published refrigerator fault format is an error marker plus letters: the help library's own pages are titled for ER(E) CF (the mechanical-compartment fan motor does not operate) and ER(E) FF / ER(E) rF (a compartment fan motor does not operate normally), and the remedy LG prints for them is a power reset — unplug the cord or trip the exclusive circuit breaker and reuse after about 5 minutes — with the rider that if the same symptom and the same inspection code repeat, an LG service technician should check the product. No LG help-library page and no owner manual consulted for this article lists CL, CL E or E CL among those fault codes. The meaning the wider internet gives CL E — a low-side refrigerant (cycle) leak — circulates in repair forums and third-party guides, and technicians discussing specific models have noted the code does not appear in those models' service manuals; it could not be verified in two LG sources, so it is recorded here as unverified rather than repeated as fact. That distinction decides the response, not the worry level: a refrigerator that displays an E or Er alongside letters resembling CL AND is losing cooling is a service case on any reading, because every candidate explanation at that end of the list — a genuine Er fault mis-read at a glance, or a sealed-system problem of the kind the third-party sources describe — ends at a technician. Sealed-system work is certified-technician work in LG's own service documentation, so there is no owner repair to attempt and no reset that substitutes for the visit. What a power reset legitimately does on this platform, per LG's Er pages, is diagnostic: the CF page states plainly that turning the power off and on makes the error disappear, and that if the fault is still present it appears again 3 hours later. A 'CL E reset' that buys a few hours of cooling and then returns is therefore behaving exactly like LG's documented Er pattern — it has told you the fault is real and present, not that it is fixed.

Most likely cause: The Lock function is on (the documented default) — LG's manuals describe one deliberate action — holding the Lock or CHILD LOCK button for about 3 seconds — that lights the Lock icon/LED and disables the other buttons. A long press is easy to deliver accidentally: a hand steadying itself on the panel, a cloth held against the buttons while cleaning, or a child reaching the panel all hold a button far longer than a tap. The refrigerator keeps cooling normally throughout, because the lock touches the controls, not the cooling system.

First check: Photograph the lit display before pressing anything. Record every character and which window each sits in — whether an E or Er marker is present is the single fact that separates the lock reading from the fault reading.

If it keeps coming back: A lock that keeps re-engaging has a hand behind it: the 3-second hold is being delivered by someone cleaning the panel, leaning on it, or exploring it. Naming the button to the household ends the recurrence. An E-paired display that returns after LG's power reset, on the documented Er timetable, is a present fault restating itself — each return is confirmation, not a new event, and it should be reported to the service visit as a pattern with dates.

DH — Defrosting failure

DH (Er dH; F dH / r dH by compartment) reports a defrosting failure: LG's definition is that the normal compartment temperature is not detected even after a set time has elapsed since defrosting started — its video guidance puts that at more than an hour spent trying to defrost without reaching the preset temperature. LG's listed causes are wider than the heater alone: ice accumulation, a blocked drainage hole, temperature fuse disconnection, heater disconnection, or main PCB failure. The slow-motion symptoms precede the code: freezer rear panel frosting over, fan noises (blades nicking ice), temperatures creeping up over one to three weeks. DH becomes clearer once you see that LG defines it by time and temperature, not by a broken part. The defrost system is a timed negotiation: the heater works to raise the evaporator to a preset temperature, the control watches for the compartment's normal temperature signature afterwards, and dH is displayed when that signature does not arrive within the allowed period — about an hour in LG's video guidance. Anything that breaks the negotiation qualifies, which is why LG's cause list mixes the electrical (fuse disconnected, heater disconnected, main PCB failure) with the purely physical (ice accumulation, a drainage hole blocked with ice). A refrigerator can therefore earn dH with every electrical component healthy, simply by carrying more frost than one defrost can clear or by refreezing its own melt water. That breadth is the reason LG's remedies escalate from a two-minute reset to a full manual defrost before any part is condemned: the cheap explanations are physical, and they are common.

Most likely cause: Ice accumulation with a blocked drainage hole — An LG-listed cause in its own right: melt water that cannot reach the drain tray refreezes, the compartment temperature never registers as defrosted, and dH is displayed even with a working heater.

First check: Confirm the frost pattern: a uniformly frosted-over evaporator/rear panel (vs. a corner-only pattern, which suggests refrigerant issues instead).

If it keeps coming back: DH returning within a month means a circuit member was missed (often the sensor drifting) or the board's defrost timing is at fault. Read DH's return interval as its diagnosis. A code that reappears about an hour after the reset has failed a live defrost attempt — think heater circuit or an overwhelming frost burden. A code that stays away for days after a thorough manual defrost, then returns, describes frost regrowing at its normal pace, which points back at air ingress: vents, door alignment, gasket condition, and the drainage hole's freedom to carry melt water away. A code that returns within weeks despite a sealed cabinet and a clear drain has exhausted the physical explanations on LG's list, leaving its electrical trio — temperature fuse, heater connection, main PCB — for the service diagnosis LG prescribes. In all three stories, letting the refrigerator run frosted for weeks is the one wrong move: cooling efficiency falls daily while the compressor's workload climbs.

FF — Freezer fan error

FF (Er FF) reports the freezer fan: it circulates air over the evaporator and distributes cold to the freezer (and, via ducts, the ice maker and fridge). When it stalls — frost-jammed or electrically dead — the freezer warms unevenly, frost patterns go strange, and eventually both compartments suffer. Defrost problems upstream (which grow the frost that jams the fan) are part of this diagnosis, not a separate story. FF rewards reading as a report about air movement rather than about cold. The refrigerator's cold-making hardware — compressor, refrigerant, evaporator — can all be healthy while FF is displayed, because the code concerns the fan that moves the finished cold to where the food is. That is why FF's symptom signature is unevenness: ice cream soft beside a rock-hard joint of meat, a cold coil behind a warming compartment, frost patterns that look wrong rather than uniformly heavy. It also explains LG's two-track remedy. A fan that is merely reported stopped gets a five-minute power reset, because controls do latch false states; a fan that is physically locked gets the opposite prescription — days of patient melting with the doors open — because no electronic reset can argue with ice. Knowing which track you are on, by listening at the fan and looking at the frost, is most of the diagnosis this code ever needs.

Most likely cause: Frost jamming the blades — The fan's ticking/clicking before failure is ice contact; silence follows when it stalls.

First check: Hold the freezer door switch in and listen for the fan while the compressor runs.

If it keeps coming back: FF + re-frosting within weeks = defrost system (heater, sensor, fuse) — the fan is the victim. FF that returns after a successful defrost and a period of normal running is accusing the frost supply, not the fan. Moist air is entering the freezer continuously — through a gasket that no longer seals, a door that is not closing squarely, or usage patterns that hold the door open — and each defrost cycle only resets the countdown until the blades are locked again; LG's advice to have repeated codes checked by a technician exists for exactly this loop. FF that returns immediately, with a visibly clear fan that still will not run, has left the frost story entirely and belongs to the motor, its wiring or its supply. And FF that begins travelling with a dH defrost code is the two systems failing as one: the defrost fault grows the frost, the frost stops the fan, and both codes need answering together.

IF — Ice-maker fan error

IF reports the ice-maker fan: the fan that pushes freezer air to the ice maker (in-door ice systems especially). LG's dedicated IF guidance defines the code as an issue with the ice maker fan due to frost or ice buildup, caused by doors not sealing properly, hot/warm food stored inside, misaligned or uneven doors, and accidental door openings. When the fan cannot run, ice production slows or stops and the ice room warms, while main compartments may stay near-normal. IF, IF E, E IF, Er IF, Er IFE, F1 and 1F are display renderings of this one fault, not separate codes: LG titles its help page 'Resolving an IF or F1 Error Code' and gives them a single remedy. [Canonical entry for the whole family — the former separate 1F and IFE entries were merged into this one in the 2026-10-28 verification pass.] IF is most usefully read as a frost report filed under a fan's name. LG's definition does not start with a failed motor; it starts with frost or ice buildup, and its cause list is entirely about how moist air reaches the ice room — seals with gaps, doors misaligned or left open, warm food in a cold box. The fan is where that moisture finishes its journey: the coldest moving part in the air path, so it collects the ice and then, locked, becomes the component the control can detect. That ordering explains LG's remedy ladder — a reset for latched reports, a long patient defrost for physical ones, professional repair held back for the minority that survive a defrost with a clear fan housing. Owners who start at the parts catalogue are reading the code backwards; IF accuses your kitchen air first and the fan motor last.

Most likely cause: Frost or ice buildup locking the fan — LG's named mechanism: frost grows around the ice-maker fan until it cannot turn.

First check: Photograph the display: IF, IF E, E IF, Er IF, Er IFE, F1 and 1F are one fault in different renderings — do not diagnose a 'second' code.

If it keeps coming back: IF returning after defrost = moist air still entering (seal, alignment, door habits, warm food) or a failing fan motor — LG routes persistent IF to professional repair. An IF that returns is keeping a diary, and its intervals name the author. Returning within days of a shortened or interrupted defrost means the melt never finished — ice deep in the fan housing survived, and the honest repeat is LG's full 8 hours. Returning after weeks, with the refrigerator otherwise healthy, describes a live moisture supply: a door seal gap (French Door seals first), a door drifting out of alignment, or long door-open loading sessions and warm food going straight in. Returning immediately after a complete defrost, with the fan area verified clear and dry, has left the frost story behind — that is the code LG routes to professional repair, and arriving with the defrost dates and the display photograph turns the visit into a fan diagnosis instead of a second defrost lecture.

6 Blinks — Compressor current overload trip

LG inverter refrigerators report some faults not on the display but as blink counts on the inverter board's LED (rear machine compartment). LG's compressor troubleshooting defines 6 blinks as the over-current trip: 'Purpose: protection from over current', with documented reasons 'high temperature, environment condition, C-Fan error, comp error, PCBA error (IPM burnt)'. The older A&E-inverter manual agrees ('Current Trip… overload protect') and names the same family: ambient over ~43°C or restricted condenser air movement, condenser fan stopped, restricted discharge line, compressor damaged, or IPM device defective. The drive's logic is protective: compressor forced off, retrying on a timer (every 360 seconds in the current manual; 2.5 minutes in the older one). An earlier version of this entry called 6 blinks a communication/start failure — in LG's chart the communication trip is 8 blinks, and the entry is corrected here.

Most likely cause: Condenser fan stopped or condenser airflow restricted — LG's owner-reachable camp: a dead C-fan or dust-matted condenser raises current draw until the drive trips.

First check: Count the blinks carefully over two full cycles of the pattern (miscounts misdiagnose — and 6 vs 8 is the whole diagnosis).

If it keeps coming back: 6 blinks returning after a board change = compressor drawing excess current — end-of-life compressor behaviour.

Less common and model-specific codes

Search data shows owners also meet these codes on LG refrigerators: 1FE, 22, CFE, CLE, CO, DE, DF, DHF, DS, E15, EE, F1E1, GF, ICE, LE, LF, RS, SD, SF, SS, TRS010. They are not part of the core code list LG publishes for most models — several are series-specific, abbreviated display readings, or codes carried over from a sister platform — so we do not publish meanings for them rather than guess. Treat them by symptom: note what the machine was doing when the code appeared (filling, draining, heating, spinning), run one full power cycle (5 minutes off), and if the code returns, match the symptom to the closest documented family in the table above and check the tech sheet stored inside your machine for the model-specific definition.

Deep-dive guides for the most searched codes

Frequently asked questions

Related guides

Facts on this page were checked against manufacturer documentation: www.lg.com · www.lg.com · www.lg.com · www.lg.com · www.lg.com