If the HVAC compressor fails but the rest of the system, including the fans, works perfectly, the cooling capacity of the system will be significantly compromised. The compressor is responsible for compressing and circulating the refrigerant, which is essential for heat exchange and cooling.
Without a functioning compressor, the system will not be able to extract heat from the indoor air effectively. While the fans can still circulate the air, they won't be able to provide sufficient cooling without the compressor's operation.
As a result, you may experience reduced or inadequate cooling performance. The system may blow room-temperature or slightly cooled air, but it won't be able to achieve the desired temperature or maintain comfortable conditions.
In some cases, the HVAC system may have safety mechanisms that prevent the fans from running if the compressor fails, to avoid causing further damage or inefficiency. This can depend on the specific design and configuration of your system.
It's recommended to have a professional HVAC technician assess the situation and determine the best course of action. They can diagnose the problem, provide guidance on whether temporary measures can be taken to maintain some level of cooling until replacement parts arrive, or advise on the necessity of immediate repairs or system replacement.