What Are the Reasons for Insufficient Cooling in Toyota Camry's Air Conditioning?

[SanBarrett]

Here are the reasons for insufficient cooling in Toyota Camry's air conditioning: 1. Excessive refrigerant causing insufficient cooling: Overfilling with refrigerant usually occurs during maintenance when too much refrigerant is added, as there is a specific requirement for the proportion of refrigerant in the air conditioning system. If the proportion is too high, it can affect heat dissipation, meaning more heat dissipation results in greater cooling capacity; conversely, less heat dissipation leads to reduced cooling capacity. Similarly, adding too much cooling oil during maintenance can also decrease the heat dissipation of the air conditioning system. 2. Excessive impurities in the refrigerant and lubricating oil causing micro-blockages and insufficient cooling: If there are too many impurities in the refrigerant and lubricating oil throughout the air conditioning system, it will inevitably clog the filter screen, reducing the refrigerant's flow capacity and increasing resistance. This results in less refrigerant flowing to the expansion valve, leading to insufficient cooling. Therefore, choosing qualified refrigerant is crucial during air conditioning maintenance.