The error code PC 04 can vary depending on the specific brand and model of the air conditioner. Unfortunately, without more information about the manufacturer or the exact air conditioner model, it's difficult to provide a precise meaning for the error code PC 04.
Generally, error codes in air conditioners are used to indicate specific faults or malfunctions within the system. They serve as a diagnostic tool to help technicians identify the problem and perform the necessary repairs. The meaning of error codes can vary between manufacturers, so it's essential to consult the user manual or contact the manufacturer's customer support for accurate information regarding the PC 04 error code for your specific air conditioner model.
If you have the user manual for your air conditioner, it should contain a list of error codes along with their explanations and recommended troubleshooting steps. If you don't have the manual or cannot find information on the error code PC 04, it is recommended to reach out to the manufacturer's customer support or contact a qualified HVAC technician who can assist you in diagnosing and resolving the issue.