GE Refrigerator Error Code F303
Fresh food temperature exceeded 75°F
Fresh food temperature exceeded 75°F. Sets if defrost has not run for 1 hour, doors closed for 1 hour, and FF temp is above 50°F.
First step from the service manual
Check sealed system operation, compressor, fans, and thermistors.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
Get the full diagnostic procedure for F303.
- 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 F303 means on a GE refrigerator
The F303 error code on a GE refrigerator indicates that the fresh food compartment temperature has exceeded 75°F under specific conditions. The control board sets this fault only after three criteria are simultaneously met: defrost has not run for at least one hour, the refrigerator doors have remained closed for at least one hour, and the fresh food thermistor is reading above 50°F. This combination of conditions confirms the temperature rise is not due to door-open warm air infiltration or a post-defrost thermal recovery period, meaning the cooling system itself is failing to maintain safe food storage temperatures.
The primary systems involved in this fault are the sealed refrigerant system, the compressor, the evaporator and condenser fans, and the thermistor network. If the compressor is not running or is running but not pumping refrigerant effectively, the evaporator will not cool. A failed evaporator fan motor will prevent cooled air from circulating into the fresh food section even if the evaporator coil itself is cold. Similarly, a condenser fan failure causes the compressor to overheat and cycle off on thermal protection, reducing or eliminating cooling capacity.
Thermistor faults can also trigger this code. If the fresh food thermistor has drifted out of calibration or has failed to a high-resistance reading, the control board will interpret the compartment as warmer than it actually is. However, a thermistor fault alone would typically not align with the sealed system appearing healthy. Diagnosis should begin with verifying compressor operation and refrigerant pressure, then checking fan motor function, and finally confirming thermistor resistance values fall within the expected range for the sensed temperature.
Source: manufacturer service documentation.
Common causes of F303
- 01
Compressor failure or weak compressor
Part replacementA failed or failing compressor cannot circulate refrigerant through the sealed system, resulting in rapid temperature rise in both compartments. Listen for the compressor attempting to start, and check for the unit short-cycling or running silently when it should be on.
- 02
Sealed system refrigerant loss
Part replacementA refrigerant leak reduces the system's ability to absorb heat at the evaporator, causing temperatures to rise even when the compressor runs. This is indicated by a compressor that runs continuously without achieving normal temperatures, and requires leak detection and recharge by a certified technician.
- 03
Evaporator fan motor failure
Part replacementThe evaporator fan circulates cold air from the evaporator coil into the fresh food and freezer sections. If this motor fails or seizes, the evaporator may be cold but air will not move into the compartments, causing temperatures to rise. Check for airflow at the interior vents and listen for fan operation.
- 04
Condenser fan motor failure
Part replacementWithout condenser fan airflow, heat cannot be rejected from the refrigerant circuit, causing the compressor to overheat and cut out on thermal overload protection. This results in intermittent or complete loss of cooling. Inspect the condenser fan for obstructions and verify the motor spins freely.
- 05
Fresh food thermistor failure or drift
Part replacementA thermistor that has failed or shifted out of its correct resistance range can cause the control board to misread the compartment temperature and log the F303 fault. Measure the thermistor resistance and compare it against the expected value for the current ambient temperature to confirm accuracy.
Frequently asked questions about F303
What does F303 mean on a GE refrigerator?
Can I fix the F303 error code myself?
Will resetting the refrigerator clear the F303 code?
Is it safe to keep food in the refrigerator when F303 is displayed?
How much does it cost to repair a GE refrigerator with an F303 error code?
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