LG Refrigerator FF Error Code: Meaning, Causes & Fix

Freezer fan error — the freezer evaporator fan motor is not running correctly (Er FF).

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.

What causes the FF code on a LG refrigerator?

Frost jamming the blades

The fan's ticking/clicking before failure is ice contact; silence follows when it stalls.

Fan motor failure

Wear-out after years of service.

Door switch fault

Fans pause with the door 'open'; a dead switch pauses them forever.

Defrost system failure feeding the frost

Heater/sensor faults grow the ice that stops the fan.

Ice locking the fan motor after a door was left ajar or a gasket leaked

LG's FF guidance names the mechanism directly: the error can occur when the fan motor is locked due to ice or frost around it. The frost has to come from somewhere, and the usual supplier is moist room air — a freezer door left open during a big unpack, a gasket corner no longer sealing, or a summer of heavy ice-maker use in a humid kitchen. Each episode deposits a little more ice at the fan until the blades can no longer turn. Treating only the ice, without asking which air leak grew it, is why this version of FF returns a few months after a successful defrost.

A defrost system quietly failing upstream of the fan

The freezer fan lives beside the evaporator, so anything that lets frost accumulate there eventually reaches the blades. LG treats defrost failure as its own error family (the dH codes), but a defrost system in slow decline can present first as FF, when accumulated frost physically stops the fan before the defrost error itself is ever displayed. A freezer whose rear panel is visibly frosted or bulging alongside FF is showing you both halves of that story at once, and the repair has to address the frost's source, not merely free the fan.

Food packaging or a shifted shelf obstructing the fan's air path

LG's FF page frames the fault as the freezer fan motor not operating normally, and 'not operating' includes being mechanically prevented: a bag of frozen food pushed hard against the rear panel, packaging drawn toward the fan grille, or ice bridging from a nearby item into the blade path can stall a healthy motor. This is the cheapest FF there is — the fan tests fine the moment the obstruction is removed — and the check costs nothing beyond emptying enough of the freezer to see the rear panel clearly.

Checks to run before you replace anything

1. Hold the freezer door switch in and listen for the fan while the compressor runs.
2. Inspect the freezer rear panel for frost bulge — the defrost-failure signature.
3. Run LG's reset first and time it as LG specifies: unplug the power cord or trip the refrigerator's dedicated breaker, wait about five minutes, then restore power and use the refrigerator. LG's FF page gives exactly this sequence, and it separates a latched electronic complaint from a fan that genuinely cannot run — a code that returns promptly after this reset has a physical reason and should be investigated as one.
4. Listen for the fan with the freezer door switch held in and the compressor running, and interpret silence correctly: a freezer fan that never attempts to turn suggests a motor or supply fault, while a fan you can hear ticking, scraping or straining before it stops is describing ice contact. LG's own text separates those same two cases — motor not operating normally, versus motor locked by frost around it — and they lead to completely different remedies.
5. Judge the not-cooling complaint with thermometers, not impressions: place one in the freezer and one in the refrigerator compartment for several hours. FF with a freezer already climbing toward thawing temperatures is a food-safety problem on a deadline (keep the door shut and arrange the defrost or service promptly), while FF with both compartments still holding temperature gives you the full LG defrost window to work in.
6. Read the display character by character before searching for parts: LG's page covers E FF for the freezer fan and E rF for the refrigerator compartment fan side by side, and the two are easy to swap when photographed or remembered hastily. FF and rF are different fans in different compartments, so confirm which code you actually have — the image captions on LG's page show the freezer code rendered as 'E FF', which is also why owners search for the code in reverse order.

How to fix lg fridge error code ff e?

1. Full manual defrost for frost jams (24h, power off, doors open) — then diagnose the defrost circuit so it doesn't regrow.
2. Replace the fan motor if blades are clear and it won't run.
3. Replace a faulty door switch.
4. If frost has locked the fan, follow LG's manual defrost rather than chipping at the ice: unplug the refrigerator, open the freezer and refrigerator doors wide, and wait for the ice around the fan motor to melt — LG's FF page allows one day in summer and three days in winter for that melt, with food moved to a spare refrigerator or coolers in the meantime. Restart only once melt water has fully drained and the fan area is dry.
5. After a defrost clears FF, spend the repair effort on the air leak that fed the frost: reseat food away from the rear panel, check the freezer gasket seals evenly all the way round (a banknote should drag, not slide, at every side), and make sure the door closes without bouncing on overfilled shelves. A fan freed from ice in a freezer that still breathes moist air is a fan being re-buried on a schedule.
6. If the blades are visibly clear, the reset has been done, and the fan still will not run on demand, LG's page is explicit that the product needs inspection: request service for an accurate diagnosis rather than ordering a fan motor on the display alone, because the same no-run symptom covers the motor, its wiring and its supply from the control.
7. Protect the food first whenever FF coincides with rising temperatures: minimise door openings, move perishable items to a working refrigerator or cooler with ice, and let thermometer readings decide what is still safe. LG couples its FF guidance with exactly this concern, recommending a technician promptly if you are worried about stored food.

The part that usually fails: Freezer evaporator fan motor

Order of checks: frost (free to test by defrost), switch (cheap), motor (usual part), defrost circuit (the root if frost returns).

Lg refrigerator error code ff e reset

Power-cycle after repair; FF clears when the fan runs on demand.

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.

Why does the FF code keep 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.

How to stop FF coming back

• Frost jamming the blades: The fan's ticking/clicking before failure is ice contact; silence follows when it stalls.
• Fan motor failure: Wear-out after years of service.
• Door switch fault: Fans pause with the door 'open'; a dead switch pauses them forever.

Retrieving stored fault 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.

Other LG refrigerator error codes

See the full list on the LG Refrigerator error codes hub.

Codes FF gets confused with

IF — Ice-maker fan error — an issue with the ice maker fan, in LG's own guidance caused by frost or ice buildup around it. Displayed as IF, IF E / E IF (Er IF) and paired by LG with F1 (read 1F on segmented displays) — all the same ice-maker fan code family. IF reports the ice-maker fan: the fan that pushes freezer air to the ice maker (in-door ice systems especially).

CF — Condenser fan error — displayed as Er CF / E CF (the E is the panel's error marker). LG: a CF error appears if the fan motor which disperses heat from the mechanical compartment (compressor) at the back of the refrigerator does not operate due to an abnormality. LG calls it a mechanical compartment fan motor defect 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.

DH — Defrosting failure — the refrigerator has failed to defrost properly (displayed F dH for the freezer side, r dH for the refrigerator side, or Er dH). 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.

RF — Refrigerator fan error (Er RF) — the fresh-food evaporator fan is not running correctly. RF reports the fridge-section evaporator fan: the fan that circulates evaporator cold through the fresh-food compartment.

Frequently asked questions

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