What are the reasons why the car air conditioner cannot be turned off?

1 Answers
StGrace
07/30/25 12:39am
The reasons why the car air conditioner cannot be turned off are: 1. The switch button of the car air conditioner is damaged; 2. The thermostat is damaged; 3. The switch contacts are stuck; 4. There is a circuit fault; 5. Poor contact of the switch. Solutions for a car air conditioner that cannot be turned off: 1. Replace the button; 2. Replace the thermostat; 3. Check the switch; 4. Replace old wiring. Maintenance methods for car air conditioners: 1. Regularly check the refrigerant and compressor oil. The pressure on the low-pressure side of the air conditioning system should be 2 to 3 bar, and the high-pressure side should be 15 to 25 bar; 2. Clean the surface of the condenser. The cooling effect of the air conditioner is related to the cleanliness of the condenser fins. Dirt, insects, or debris on the condenser surface will reduce heat dissipation efficiency and affect cooling performance. Starting the air conditioning system under high pressure and heat can severely impact compressor-related components; 3. Clean the surface of the evaporator.
Was this review help?
12
3
Share
More Forum Discussions

How many seconds should the fourth gear be maintained in Subject 3?

In Subject 3, it is best to keep the 4th gear engaged for more than 3 seconds. After starting in 1st gear, pay attention to shifting to 2nd gear at least 20 meters before the gear shifting section. Stabilize the speed in 2nd gear to 22 km/h. When you hear the gear shifting prompt, first press the accelerator to increase the speed in 2nd gear to 25 km/h, then press the clutch and shift to 3rd gear. Release the clutch and press the accelerator to increase the speed in 3rd gear to 30-35 km/h, then shift to 4th gear and immediately downshift to 3rd gear. After that, downshift without accelerating. Exam Content: The road driving skills test for Subject 3 includes the following for large buses, heavy-duty trailers, city buses, medium-sized buses, large trucks, small cars, small automatic transmission cars, low-speed trucks, and small automatic transmission cars for the disabled: vehicle preparation, light simulation test, starting, driving straight, gear shifting operations, changing lanes, pulling over, going straight through intersections, turning left at intersections, turning right at intersections, passing crosswalks, passing school zones, passing bus stops, meeting other vehicles, overtaking, making U-turns, and nighttime driving. Precautions: Lights: When changing lanes, making U-turns, or turning, remember to use the turn signals. After activating the turn signal, it's best to hold it to prevent it from automatically turning off when the steering wheel is straightened, which might not be detected by the sensor. Driving Straight: Generally, training vehicles are used for a long time, and during straight driving, they often deviate slightly. In such cases, gently adjust the steering wheel to correct the direction, but avoid large adjustments as they may affect the test results. Additionally, when driving straight, look far ahead and use reference points to avoid drifting off course. Speed: Except for straight driving or acceleration, it's best to maintain a speed of 20-30 km/h for other test sections, as this makes it easier to control the vehicle.
12
4
Share

What does dashcam streaming media mean?

Dashcam streaming media refers to a technology that installs cameras on the vehicle to display real-time footage on the rearview mirror screen, providing better safety for the owner. Below are the specific features of streaming media dashcams: 1. Wide field of view: Streaming media offers a five-fold ultra-wide field of view, basically covering the lanes behind the vehicle, allowing the driver to monitor the rear situation in real-time. 2. Ultra-clear and distortion-free: Streaming media dashcams not only have high clarity but also ensure the image remains undistorted even when covering a large area. They can transmit clear images to the driver even in poor lighting conditions or when the rear view is obstructed, improving driving safety. 3. Super anti-glare: The anti-glare function is particularly useful at night, as glaring lights can affect driving safety. Streaming media dashcams feature an ultra-strong anti-glare capability with excellent light absorption, significantly enhancing driving safety.
6
4
Share

What are the reasons for the Changan Eado's lack of power when climbing slopes?

The following are the reasons for the Changan Eado's lack of power when climbing slopes: Fuel quality issues: If the fuel quality is poor, excessive impurities or moisture in the fuel can lead to insufficient power. Moreover, low-quality fuel can easily clog components with small holes or filtration functions, such as the fuel filter, fuel pump screen, and fuel injectors, resulting in poor fuel supply and reduced engine performance. High gear selection: When climbing slopes, if the gear is set too high, it will naturally be difficult to increase the RPM. For manual transmission models, it is generally advisable to use gears 1-3 when climbing slopes, depending on the situation. For automatic transmission models, if the slope is too steep, it is recommended to use L gear, 1st gear, or 2nd gear for climbing, as different models may vary.
19
2
Share

How Many Tires Should Snow Chains Be Installed On?

Snow chains need to be installed on all four tires for relatively better stability. If they are only installed on two tires, it can easily lead to tail sliding, compromising driving safety. Snow chains should not be installed on emergency or spare tires, as these differ from the car's full-size tires. Snow chains are generally designed for full-size tires, and using them on spare tires can accelerate tire wear. Below is an introduction to the functions of car tires: 1. Support the entire weight of the vehicle, bear the load of the car, and transmit forces and moments in other directions. 2. Transmit traction and braking torque to ensure good adhesion between the wheels and the road, improving the car's power, braking, and off-road capabilities; work together with the car's suspension to mitigate shocks during driving and dampen resulting vibrations. 3. Prevent severe vibrations and premature damage to car components, adapt to the vehicle's high-speed performance, reduce driving noise, and ensure driving safety, handling stability, comfort, and fuel economy.
14
1
Share

What are the regulations for the annual inspection time of small cars?

The regulations for the annual inspection time of small cars are as follows: within 6 years, inspect once every 2 years; for cars over 6 years old, inspect once every year; for cars over 15 years old, inspect once every 6 months. If a vehicle is found by traffic police on the road without an annual inspection, the owner will be fined or the vehicle will be impounded. At the same time, in the insurance contract, vehicles that have not been inspected in time are considered unqualified. Once a car insurance accident occurs, no compensation will be provided. This highlights the importance of vehicle annual inspections. According to the Road Traffic Safety Law Implementation Regulations, motor vehicles should undergo safety technical inspections from the date of registration according to the following periods: 1. For passenger vehicles used for business purposes, inspect once every year within 5 years, and once every 6 months for vehicles over 5 years old; 2. For cargo vehicles and large or medium-sized non-business passenger vehicles, inspect once every year within 10 years, and once every 6 months for vehicles over 10 years old; 3. For small and mini non-business passenger vehicles, inspect once every 2 years within 6 years, once every year for vehicles over 6 years old, and once every 6 months for vehicles over 15 years old.
12
1
Share

What is the curb weight of the Land Cruiser 4000 in kilograms?

The Land Cruiser 4000 has a curb weight of approximately 2.2 tons, which converts to 2200 kilograms. Land Cruiser: The Land Cruiser [Land Cruiser] is the Toyota LAND-CRUISER-200, an imported ORV (Off-Road Vehicle) produced by Toyota. While inheriting the original design DNA, its appearance evolves into a style that embodies the "freshness and advancement" of the new era. Vehicle Curb Weight: Vehicle curb weight refers to the weight of the vehicle itself without any cargo or passengers, measured in tons (t) as the basic unit, retaining one decimal place.
14
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.