Polar Refrigerator Error Code FL --

FL -- means the refrigerator's flame sensor has detected an active flame at the burner when the burner is supposed to be off. On Polar N7LX and N8LX models, this fault is caused by the gas valve being mechanically stuck in the open position, allowing gas to continue flowing and burning. The control board triggers this code to alert you to the uncontrolled combustion condition. The gas supply should be shut off and the unit taken out of service until the gas train assembly is replaced.

Yes, FL -- represents a genuine safety concern. A gas valve stuck open allows uncontrolled combustion to continue beyond the normal operating cycle, which can cause overheating and poses a risk of fire or other hazards. You should turn off the appliance, shut off the gas supply at the nearest shutoff valve, and ensure the area is well ventilated. Do not continue operating the refrigerator until the gas train assembly has been replaced.

Repair costs depend on parts pricing for the gas train assembly and local labor rates, but you can generally expect to budget in the range of $150 to $450 or more depending on parts availability and technician fees. Gas appliance repairs typically carry a higher labor cost due to the safety certifications required. Obtaining a quote from a qualified technician before proceeding is advisable.

The repair requires replacing the gas train assembly, which involves working directly with gas supply lines and combustion components. This type of repair is generally best handled by a qualified appliance technician or gas engineer. Attempting to free or repair the stuck gas valve independently is not recommended, as the valve is part of an integrated assembly. Always shut off the gas supply at the source before beginning any inspection.

Resetting the control board will not resolve the underlying fault. The FL -- code is triggered by a real mechanical failure of the gas valve, and the condition will recur immediately or persist as long as the valve remains stuck open. The only way to clear this fault permanently is to replace the gas train assembly and restore proper valve operation.