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Error code reference

GE Ice Maker Error Code Water icon and REPLACE FILTER on

Water level sensor error has occurred.

GE codesGE ice maker codes

Water level sensor error has occurred.

First step from the service manual

Check water level sensor operation and connections.

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 Water icon and REPLACE FILTER on means on a GE ice maker

On GE ice makers, the simultaneous illumination of the water icon and the REPLACE FILTER indicator signals a water level sensor error. The water level sensor monitors the volume of water inside the ice maker reservoir or trough, ensuring the correct amount is available for each freeze cycle. When the control board receives a signal from this sensor that falls outside expected parameters, either too low, too high, or an open/short circuit condition, it triggers this combined display to alert the technician that the water level sensing system has failed or is reporting inaccurate data.

The water level sensor itself is typically a float-type or optical sensor positioned within the water reservoir. Faulty wiring, corroded connectors, or a sensor that has become coated with mineral scale can all prevent accurate readings from reaching the control board. In hard water areas, calcium and magnesium deposits can physically obstruct a float sensor or block the optical path of a photosensor, causing the control board to register a fault even when water supply is adequate.

Diagnostic work should begin with a visual inspection of the sensor and its wiring harness, checking for loose connectors, broken wires, or visible corrosion at the terminal pins. If the connections are intact, the sensor itself should be tested for proper operation, including checking its output signal or resistance value against specification. The water inlet valve and supply line should also be confirmed functional, as insufficient water flow can mimic a sensor fault by preventing the reservoir from reaching the correct level.

Source: manufacturer service documentation.

Common causes of Water icon and REPLACE FILTER on

  1. 01

    Mineral scale buildup on the sensor

    Wiring / connection

    Hard water deposits can coat a float or optical water level sensor, preventing it from moving freely or reading accurately. Inspect the sensor for white or yellowish mineral crust and clean or replace it as needed.

  2. 02

    Loose or corroded wiring connections

    Wiring / connection

    The connector linking the water level sensor to the control board can work loose over time or develop corrosion that interrupts the signal. Check all terminals at both the sensor and the board for secure fit and clean contact.

  3. 03

    Faulty water level sensor

    Part replacement

    The sensor itself can fail mechanically or electrically, producing an out-of-range signal or no signal at all. If connections check out and the sensor does not respond correctly during testing, replacement is required.

  4. 04

    Inadequate water supply or blocked inlet valve

    Wiring / connection

    If the water inlet valve is partially clogged or water pressure is too low, the reservoir may never fill to the level the sensor expects, triggering the error. Confirm supply pressure and inspect the inlet valve screen for debris.

  5. 05

    Control board fault

    Part replacement

    If the sensor and all wiring test within specification but the error persists, the control board may be misreading the sensor signal due to an internal failure. Board replacement would be required in this scenario.

See the test procedure for each cause

Frequently asked questions about Water icon and REPLACE FILTER on

What does Water icon and REPLACE FILTER on mean on a GE ice_maker?
This display combination indicates a water level sensor error has occurred. The ice maker's control board is not receiving a valid signal from the sensor that monitors water volume in the reservoir. This prevents the unit from confirming it has the correct amount of water to run a freeze cycle, so ice production stops until the issue is resolved.
How do I fix the water level sensor error on my GE ice maker?
Start by inspecting the water level sensor and its wiring harness for loose connectors, corrosion, or mineral deposits. Clean any scale buildup from the sensor and reseat all electrical connections. If the sensor does not operate correctly after cleaning and reconnection, it will need to be replaced. Also verify that the water supply line and inlet valve are delivering adequate water flow to the unit.
Will resetting my GE ice maker clear this error?
A reset may temporarily clear the display, but the error will return if the underlying cause has not been addressed. The water level sensor error is triggered by an active fault condition, so the sensor, its connections, and the water supply should all be diagnosed and corrected before relying on a reset to restore normal operation.
Is it safe to continue using my GE ice maker when this error is showing?
The ice maker will typically stop producing ice when this error is active, so there is no immediate safety hazard from the unit running in a compromised state. However, you should not attempt to bypass the sensor or ignore the fault, as the water level sensor is a control component that protects the unit from running without proper water. Address the error before resuming use.
How much does it cost to repair a GE ice maker water level sensor error?
If only cleaning or reconnecting the sensor is needed, there may be little to no parts cost, with any expense coming from a service call fee, which typically ranges from $75 to $150. If the water level sensor itself requires replacement, parts generally range from $20 to $80 depending on the model. A control board replacement, needed only in rare cases, can cost between $100 and $300 or more for parts alone.

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