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Error code reference

GE Refrigerator Error Code 0402

Flow meter

GE codesGE refrigerator codes

Flow meter - no signal received during dispense.

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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 0402 means on a GE refrigerator

Error code 0402 on a GE refrigerator indicates that the flow meter is not sending any signal to the control board during a water dispense event. The flow meter is a sensor positioned in the water dispense path that monitors water movement by generating electrical pulses as water flows through it. When the user activates the dispenser, the control board expects to receive these pulse signals confirming that water is moving. If no signal is received during that dispense window, the board logs error 0402.

The most common reason for this fault is a failed or disconnected flow meter. The sensor contains a small impeller or paddle wheel that spins as water passes through, triggering a Hall effect sensor or reed switch to produce the pulse output. If the impeller is jammed with debris or mineral deposits, or if the sensor itself has failed electrically, no signal will be generated. A broken, corroded, or unplugged wiring harness between the flow meter and the control board can produce the same result, since the board receives silence either way.

It is also possible for a water supply restriction to cause this code indirectly. If water pressure is too low or the water inlet valve is partially clogged or failing, insufficient water may move through the flow meter to spin the impeller and generate a readable signal. Checking water pressure at the supply line and inspecting the inlet valve for scale buildup or solenoid failure are important steps before replacing the flow meter itself.

Source: manufacturer service documentation.

Common causes of 0402

  1. 01

    Failed or jammed flow meter

    Part replacement

    The flow meter's internal impeller can become clogged with mineral deposits or debris, preventing it from spinning and generating a signal. A failed Hall effect sensor or reed switch inside the unit will also produce no output.

  2. 02

    Disconnected or damaged wiring harness

    Wiring / connection

    The connector between the flow meter and the main control board can loosen, corrode, or suffer wire damage, cutting off the signal path entirely. Inspect the connector and wiring for corrosion, bent pins, or breaks.

  3. 03

    Low water supply pressure

    Wiring / connection

    If household water pressure is too low, not enough water flows through the meter to spin the impeller and generate a detectable signal. Confirm that supply pressure meets the refrigerator's minimum requirement and that the supply valve is fully open.

  4. 04

    Clogged or failing water inlet valve

    Part replacement

    A water inlet valve restricted by scale buildup or with a weakening solenoid may allow only a trickle of water through, insufficient to trigger the flow meter. Testing the valve for proper opening and inspecting its filter screen can help confirm this cause.

  5. 05

    Main control board fault

    Part replacement

    In rare cases the control board itself may fail to read the flow meter signal even when the sensor and wiring are intact. This is typically diagnosed only after all other components have been confirmed functional.

See the test procedure for each cause

Frequently asked questions about 0402

What does 0402 mean on a GE refrigerator?
Error code 0402 means the flow meter in your refrigerator's water dispenser system sent no signal to the control board during a dispense attempt. The flow meter monitors water movement through the dispenser line, and the absence of any signal indicates the sensor is not detecting water flow. This can be caused by a failed sensor, a wiring problem, low water pressure, or a faulty inlet valve.
Can I fix error code 0402 on my GE refrigerator myself?
Some causes of this error are DIY-friendly. You can check that the water supply valve is fully open, verify household water pressure is adequate, and inspect the wiring harness to the flow meter for loose or corroded connectors. Replacing the flow meter or water inlet valve requires basic appliance repair skills and the correct replacement part, which is manageable for experienced DIYers.
Will resetting my GE refrigerator clear error code 0402?
A reset may temporarily clear the error code from the display, but if the underlying problem with the flow meter or water supply is not corrected, the code will return the next time you use the dispenser. Resetting is useful for confirming whether the fault is intermittent, but it is not a fix on its own.
Is error code 0402 on a GE refrigerator a safety concern?
This error code does not indicate a safety hazard. It is a functional fault that affects the water dispenser and ice maker operation rather than a situation involving electrical danger or risk of injury. The refrigerator's cooling functions should continue to operate normally while this fault is present.
How much does it cost to repair error code 0402 on a GE refrigerator?
Repair costs vary depending on the root cause. A replacement flow meter typically costs between $20 and $60 for the part alone. A water inlet valve generally runs between $30 and $80. If you hire a technician, expect to add labor charges in the range of $80 to $150 depending on your location, bringing total repair costs to roughly $100 to $250 for most scenarios.

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