GE Refrigerator Error Code F502

F502 indicates that the flow meter, which monitors water movement through the dispenser line, is detecting pulses after dispensing has stopped. The control board runs this check about one minute after a dispense cycle and flags the fault when flow sensor activity continues unexpectedly. It typically points to a water inlet valve that is not closing completely or a flow meter that is sending false signals.

A power reset may temporarily clear the F502 code, but it will return if the underlying problem is not corrected. Because the control board re-runs the diagnostic check after every dispense cycle, the fault will reappear as soon as the post-dispense window detects continued flow meter activity. A permanent fix requires addressing the faulty valve or sensor.

If the water inlet valve is the cause, parts typically range from roughly 30 to 80 dollars depending on the model, with professional labor adding 100 to 200 dollars in most areas. A replacement flow meter sensor generally costs between 20 and 60 dollars for the part alone. Diagnosing the issue yourself before calling a technician can help narrow the repair scope and reduce overall costs.

Start by inspecting the water inlet valve for debris or wear and test its solenoid coil to confirm it is de-energizing correctly after a dispense. Next, check the flow meter for scale buildup or wiring issues. If the valve is not sealing properly, replacing it is usually the fix. If the valve is fine, the flow meter or its wiring harness may need to be replaced.

Yes, it should be addressed promptly. A valve that is not closing fully can allow water to continuously trickle into the ice maker or dispenser system, potentially causing ice maker overflow, water pooling inside the cabinet, or slow leaks that could damage flooring. Shutting off the water supply to the refrigerator is a reasonable precaution until the repair is completed.