The PC error in Carrier AC occurs when the system detects very low outdoor ambient temperatures in both hot and cold models, triggering the protection mode. This error is designed to prevent potential damage to the air conditioner’s components when the outdoor temperature falls too low for safe operation. The PC error acts as a safeguard, ensuring that the unit doesn’t experience malfunctions due to freezing conditions or other temperature-related issues that could harm the internal components. When the PC error is triggered, the system will automatically stop operating to protect itself from further damage. The unit will remain in this protection mode until the outdoor temperature rises to a safe level, at which point the air conditioner can resume its normal functioning. This error is especially important in areas where temperatures can drop significantly, as it helps prevent long-term damage and ensures the longevity of the system.

Meaning

Outdoor Ambient Temperatures Very Low detected in Hot and Cold AC : Protection