Why is the recirculation light not on?
1 Answers
Most vehicles have only one button to control the air recirculation mode. Generally, when the light is off, it indicates the current mode is fresh air (outside air) circulation, and when the light is on, it means recirculation mode is active. Some vehicles have two separate buttons for outside/recirculation modes, where the illuminated button indicates the active mode. Here's more information about recirculation and fresh air modes: 1. Fresh Air Mode: This mode draws air from outside the vehicle, directs it through the air conditioning system for heating or cooling, and then blows it out through the vents. Fresh air mode replenishes the cabin with outside air, improving air quality inside the vehicle. However, if the outside weather is extremely hot and dry, using fresh air mode requires the AC compressor to work continuously to cool the incoming hot air, which consumes additional fuel. 2. Recirculation Mode: This mode circulates and reuses the air already inside the vehicle cabin. The AC system draws in cabin air, cools it, and then recirculates it. Once the cabin temperature reaches the set value, the AC compressor disengages, reducing engine load. Therefore, the faster the cabin reaches the desired temperature, the sooner the engine load decreases, resulting in lower fuel consumption.
