GE Refrigerator Error Code 0402

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.

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.

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.

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.

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.