Where is the car's air conditioning hot and cold air switch located?
2 Answers
Generally, the blue button on the left side of the car's air conditioning represents cold air, while the red one represents warm air. Below is a detailed introduction to the components of the car air conditioning system: 1. Air conditioning pressure sensor: Usually installed after the dryer, it is used to detect the hydraulic pressure of the liquid refrigerant flowing through the expansion valve. It has three wires: detecting high and low pressure. In case of refrigerant leakage or compressor oil loss after a collision, to prevent compressor damage due to lack of oil, it quickly cuts off the compressor power once low pressure is detected. When high pressure is detected, it reduces the compressor power to avoid wasted effort. 2. Air conditioning temperature sensor: Typically located inside the temperature sensing package, it is the evaporator temperature sensor. When the temperature drops to a certain level, it shuts off the compressor to prevent frosting and eventual ice blockage from further cooling. 3. Air conditioning compressor relay: Usually mounted on the compressor, it controls functions such as the compressor's start, stop, and power switching.
I've been driving for over a decade, and the AC temperature controls are usually located on the central control panel. Manual AC systems have a large central knob - blue markings on the left indicate cold air, red on the right for warm air, and it makes a clicking sound when turned. Automatic AC is even simpler with just two temperature adjustment buttons showing digital readouts. Newer models even feature touchscreen controls where you adjust temperature through menus. Remember in winter to turn the temperature knob all the way to the red zone for heat while turning off the AC button to save fuel. Some premium cars have dual-zone climate control with separate knobs for driver and passenger sides - a very thoughtful design.
