
The ECON on a car air conditioner is actually an energy-saving mode of the air conditioner. ECON only takes effect when the air conditioner's cooling function is turned on. The air conditioner compressor is driven by the engine and can consume up to 20% of the engine's power. After activating the ECON mode, the vehicle will reduce the air conditioner's power while ensuring its cooling effect, thereby saving fuel. The method to turn on the air conditioner's economy mode is very simple. The owner only needs to press the "ECON" button after turning on the air conditioner. When the light on the button is on, the air conditioner's cooling system is turned off, and only natural air or warm air is provided. The introduction of the car air conditioner's ECON mode is as follows: Usually, the A/C symbol on a car air conditioner represents the air conditioner being turned on or off, while ECON only takes effect when the air conditioner's cooling function is turned on, representing the air conditioner's economy mode. In this state, the compressor will also work. Compared to the normal mode, the control point of the compressor is increased, and the compressor is not always engaged during operation. The start and stop points of the compressor are controlled by the evaporation temperature. In normal mode, the compressor's start-stop point is 24°C. In ECON mode, the compressor's start-stop point is 810°C. The lower the temperature, the longer the compressor's working time and the greater its workload. After activating the ECON mode, the engine's power output is saved, and fuel is conserved. The functions of the car air conditioner: Achieve cooling effects through the continuous cycle of refrigerant; Remove dust, odors, smoke, and toxic gases from the car's air, making the air inside the car fresher, and humidify the car's air to increase its relative humidity; Use the engine's coolant, waste heat, or heat generated by a burner as a heat source for heating. The heater warms the air, which is then blown into the car by the blower, raising the temperature at the air outlet to achieve heating; Draw fresh air from outside the car for ventilation and air exchange, which also helps prevent window fogging. Precautions for using the air conditioner in the car: Do not set the air conditioner temperature too low. A large temperature difference between the inside and outside of the car can easily cause the driver to catch a cold, and excessively low temperatures may also pose a risk of arthritis to passengers. Control the direction of the air outlet. Based on the principle that cold air sinks and hot air rises, when using the air conditioner, set the air outlet upward when cooling and downward when heating. Do not turn on the air conditioner immediately after the car has been exposed to the sun. After the car has been exposed to the sun, the temperature inside will be very high. First, open the windows to ventilate and let the hot air out before turning on the air conditioner.

When I first bought a car, I didn’t understand the ECON button either, but later I found it to be a real energy-saving helper. Pressing ECON on the air conditioning means activating the economy mode, which adjusts the compressor’s operation to avoid running at full load continuously. Instead, it starts intermittently as needed, reducing the air conditioning’s energy consumption. For example, in summer, you might notice the cooling is slightly slower, but the temperature remains comfortable while saving a significant amount of fuel. I often use ECON in city traffic jams, and every time I refuel, I notice the mileage has increased. Over time, it reduces fuel costs and exhaust emissions. Eco-conscious drivers love this setting because it not only saves money but also lessens environmental impact. It’s recommended for use in non-extreme weather—both practical and sustainable.

Having driven for many years, I always enjoy exploring these small features. The ECON button on the car's air conditioning stands for Economy Mode. When activated, the compressor works less frequently, and the air conditioning output becomes gentler, avoiding the intense chill of full power mode. This helps with fuel consumption, especially during highway or long-distance driving. I've tested it, and enabling ECON can reduce average fuel consumption by about half a liter per 100 kilometers. While not a dramatic change, the accumulated savings are worthwhile. In terms of comfort, it provides more even cooling, preventing sudden temperature fluctuations. I recommend trying it during daily commutes to see if you adapt to this slightly adjusted balance.

As someone who often studies car air conditioning, I find the ECON mode to be a clever design. Its working principle is simple: by controlling the intermittent operation of the compressor, it reduces continuous load, thereby saving fuel. Compared to the normal mode, temperature adjustment is more gradual in ECON, but the cooling effect still meets basic requirements. This is particularly suitable for city driving or mild weather, as it reduces engine burden. Additionally, some cars combine it with automatic fan adjustment to further optimize energy efficiency.

I have always prioritized vehicle maintenance, and using the ECON button is part of that routine. This button on the air conditioning represents the economy mode, which slows down the compressor operation, reduces additional engine load, and helps extend component lifespan. Through practice, I've found that frequently activating ECON can prevent premature wear of the air conditioning system, resulting in lower maintenance costs. It is suitable for use under various conditions, such as mild seasons or city driving. Additionally, combining it with regular cleaning of the air conditioning filter allows the ECON mode to perform even better, keeping the car healthier and more durable.


