Norcold Refrigerator Error Code L1 oP

L1 oP means the high temperature limit switch on the cooling unit boiler has opened or become disconnected. This switch activates when boiler temperature reaches or exceeds 378°F (192.2°C). The refrigerator shuts down as a safety measure to prevent damage or fire. The underlying cause of the overheating must be identified and corrected before the unit is returned to service.

No, the refrigerator should not be operated while the L1 oP code is active. This code indicates the cooling system reached a dangerously high temperature, and continuing to attempt operation without resolving the cause poses a risk of further damage to the cooling unit and a potential fire hazard. The unit has shut itself down as a protective measure and should remain off until properly inspected and repaired.

Repair costs vary widely depending on the root cause. Replacing the high temperature limit switch itself is typically a lower-cost repair, often in the range of $20 to $80 for the part. If the problem is traced to a failed heating element, costs can range from $50 to $150 in parts. A full cooling unit replacement, which is required in the most severe cases, can range from $400 to $900 or more depending on the model and labor involved.

Start by confirming the refrigerator is sitting level and that all ventilation openings are unobstructed. Once the root cause of the overheating is identified and corrected, the high temperature limit switch will need to be reset or replaced to restore operation. If the switch is open at room temperature, it has tripped and will not reset on its own in most cases. Replacing the switch without fixing the root cause will result in a repeat failure.

Resetting or replacing the limit switch may clear the code and allow the refrigerator to restart, but the code will return if the root cause of the overheating is not corrected. A reset should only be performed after addressing ventilation, levelness, the heating element, and the burner. Repeated tripping of the limit switch is a strong indicator that a deeper problem with the cooling unit exists.