ERROR CODEFFDiagnostic reference

LG · Refrigerators

LG Refrigerator FF Error: Freezer Fan and Frost

THE SHORT ANSWER

The freezer fan is not operating normally.

FF identifies a freezer-fan problem. Frost can obstruct the fan, but an error that remains after defrosting needs professional diagnosis.

First safe check

Protect the food before planning any long power interruption.

Applies to

LG refrigerators; display prefixes and procedures vary.

Before you start

Do not use a hair dryer, heat gun, sharp tool, or open flame to remove ice. Do not expose fan wiring.

Go to safe checks

WHAT YOU MAY NOTICE

Symptoms to record

  • FF or a prefixed version appears
  • Frost may be present

UNDERSTAND THE POSSIBILITIES

Causes & useful observations

A code identifies a condition. It does not, by itself, confirm which part needs repair.

Possible causes, observable symptoms, safe checks, and service boundaries
Possible causeWhat to look forSafe check / next step
Frost near the fanVisible ice or frostConsider the documented natural-defrost option.
Unresolved fan faultService may be neededCode persists after defrostRequest service.

WORK THROUGH THE BASICS

Safe troubleshooting checks

0 of 3 checked

Use the checkboxes to keep track as you read. Stop at any warning or step that does not match your appliance.

  1. Move food to another refrigerator or insulated cooler and place towels for meltwater.

    What to note

    Food must remain safely stored.

  2. LG’s dedicated FF guide specifies unplugging and leaving both doors open for at least 24 hours.

    What to note

    Ice must thaw without added heat.

  3. Dry the interior before reconnecting. LG allows 24–48 hours for normal cooling to return.

    What to note

    If FF remains, request repair.

THE DETAILS MATTER

Scope & troubleshooting notes

Duration differs across documents

Use the exact-model manual if it differs. Do not assume that a brief reset removes frost.

YOUR NEXT DECISION

When to stop and get help

Arrange service if you cannot safely store the food or the code persists.

Record what you see

Keep the full model number, exact displayed code, and your observations together for the next conversation.

Use the right support

Contact the manufacturer or a qualified appliance technician when the guide calls for service.

LG support

THE EVIDENCE

Sources & verification

Our explanations are editorial summaries of the documentation below. They do not replace the instructions for your exact appliance.

  1. LG refrigerator Er FF, E FF or F code

    LG USA · Manufacturer support · Checked

    Freezer fan; natural defrost; no hair dryer — LG refrigerators; standard-model guidance

    Newer dedicated article specifies at least 24 hours; generic lists sometimes give eight hours. No universal eight-hour instruction is presented.

  2. LG refrigerator E FF or E rF troubleshooting

    LG USA · Manufacturer support · Checked

    Fan distinction; food-storage concern; professional diagnosis — LG refrigerators; older general article

    Earlier support guidance differs from newer defrost timing. The newer dedicated instructions and exact-model manual take precedence.

ErrHive is an independent information resource, not an authorized representative of LG. Follow your appliance’s manual. Hazardous repairs belong with qualified professionals. Read our safety policy.