The P7 error in Carrier AC indicates that the IPM (Intelligent Power Module) has overheated, triggering a protection mode to prevent damage to the system. The IPM module plays a crucial role in controlling the compressor and other vital components in the air conditioning unit, and when it overheats, it can cause the system to malfunction. When the P7 error occurs, it means that the IPM module has reached a temperature beyond its safe operating limit. This overheating can be caused by several factors, including excessive load on the compressor, poor ventilation around the unit, or internal component malfunctions. If the IPM module gets too hot, it may stop functioning properly, and the air conditioner will enter protection mode to avoid further damage. Once the IPM module cools down and the underlying issue is resolved—such as improving airflow or repairing any malfunctioning parts—the system will reset, and the AC will return to normal operation. Regular maintenance, such as checking the electrical components, ensuring proper airflow, and addressing any issues with the compressor, can help prevent the P7 error and maintain the reliability of your Carrier AC.

Meaning

IPM MODULE Overheating Protection