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Error code reference

LG Refrigerator Error Code E gF

Flow meter (sensor) defect

LG codesLG refrigerator codes

Flow meter (sensor) defect — error of flow meter, water input, or low water pressure, or flow meter connection issue.

First step from the service manual

Check flow meter connection and water pressure.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
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What E gF means on a LG refrigerator

The E gF error code on an LG refrigerator indicates a defect or fault condition within the flow meter system. The flow meter is a small sensor installed in the water supply line that monitors the volume and rate of water flowing into the refrigerator for ice making and water dispensing. When the refrigerator's control board cannot read a proper signal from the flow meter, or detects that water flow is below an acceptable threshold, it triggers this error to alert the user and technician.

The three primary causes fall into distinct categories: a wiring or connection issue between the flow meter and the main control board, an actual failure of the flow meter sensor itself, or an external water supply problem such as low incoming water pressure. Low water pressure is a common culprit, particularly if the home's supply valve is not fully open or a kinked supply line is restricting flow. The connection terminals on the flow meter harness should be inspected first, as vibration over time can loosen plugs or corrode terminal contacts.

Diagnosing this code begins with confirming that the household water supply valve behind or beneath the refrigerator is fully open and that the supply line is not kinked or obstructed. Water pressure to the unit should meet the refrigerator's minimum requirement for proper operation. If pressure and supply lines check out, the flow meter connector should be unplugged and inspected for corrosion, bent pins, or loose fit before testing the sensor itself for continuity or correct signal output.

Source: manufacturer service documentation.

Common causes of E gF

  1. 01

    Low or insufficient water pressure

    Wiring / connection

    If the household water supply valve is partially closed, or the supply line is kinked, water pressure reaching the refrigerator may be too low for the flow meter to register properly. Check that the shutoff valve is fully open and the supply line has no bends or restrictions.

  2. 02

    Loose or faulty flow meter connection

    Wiring / connection

    The wiring harness connecting the flow meter to the control board can loosen or corrode over time, interrupting the sensor signal. Unplug the connector, inspect the terminals for corrosion or bent pins, reseat it firmly, and retest.

  3. 03

    Failed flow meter sensor

    Part replacement

    The flow meter itself can fail internally, preventing it from sending an accurate signal to the control board even when water pressure and connections are normal. A failed sensor will need to be replaced to clear the fault.

  4. 04

    Clogged or frozen water inlet

    Wiring / connection

    A partially clogged inlet filter or a frozen section of the internal water line can restrict flow enough to trigger the E gF code. Inspect the inlet valve filter screen for sediment buildup and check for ice obstructions in the water line.

  5. 05

    Defective water inlet valve

    Part replacement

    If the water inlet valve is not opening fully or is failing, the flow meter may not detect adequate water movement even with good supply pressure. Testing the inlet valve for proper operation and solenoid continuity can confirm this cause.

See the test procedure for each cause

Frequently asked questions about E gF

What does E gF mean on a LG refrigerator?
The E gF code indicates a flow meter defect or error related to water input on your LG refrigerator. It means the control board is detecting a problem with the flow meter sensor, the water supply, or the connection between the sensor and the board. Low water pressure, a loose wiring connection, or a failed flow meter sensor are the most common causes. This error typically affects ice making and water dispensing functions.
How do I fix the E gF error on my LG refrigerator?
Start by checking that the water supply valve behind the refrigerator is fully open and that the supply line is not kinked. Next, locate the flow meter and inspect its wiring connector for corrosion or looseness, then reseat the connection firmly. If pressure and connections are both good, the flow meter sensor or the water inlet valve may need to be tested and potentially replaced.
Will resetting my LG refrigerator clear the E gF code?
A reset may temporarily clear the E gF code from the display, but if the underlying cause is not corrected, the error will return. To perform a reset, unplug the refrigerator for a few minutes and then restore power. Resetting is useful for confirming whether a repair resolved the issue, but it is not a fix on its own.
Is it safe to keep using my LG refrigerator when the E gF code is showing?
The E gF error does not typically indicate a hazard to food safety or a risk of damage to the refrigerator cabinet itself. However, the ice maker and water dispenser may not function correctly while the fault is active. You can continue refrigerating and freezing food, but it is advisable to address the issue promptly to restore full functionality.
How much does it cost to repair the E gF error on a LG refrigerator?
Repair costs vary depending on the root cause. If the fix is simply repositioning a loose water supply valve or reseating a connector, there may be no parts cost at all. Replacing a flow meter sensor typically costs between $20 and $60 for the part, while a water inlet valve replacement generally runs $30 to $80 in parts. Adding a technician's labor fee can bring the total repair cost to a range of $100 to $250 or more depending on your location and the specific parts required.

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