How often should a car air conditioner be cleaned and maintained?
1. Car air conditioners that have not been used for a long time need to be cleaned before and after use; a complete cleaning of the car air conditioner is required, such as The evaporator, ventilation ducts, air conditioning grille, filters and other components of car air conditioners all require careful cleaning.
2. The car air conditioning filter needs to be cleaned once a month; the cleaning cycle of the filter can be adjusted appropriately according to the frequency of use and environment. If the filter is used for more than 20,000 kilometers, the activated carbon filtration function in the air conditioning filter element will diminish. At this time, it is best to replace the air conditioning filter element to save more fuel.
3. Car air conditioners need to be cleaned at least once a year; according to professionals, if car air conditioners are not cleaned for a long time, a lot of dust will accumulate, causing secondary air pollution, which will affect the user’s body after inhalation It is healthy, and it is best to ask professionals from the 4S shop to clean it during cleaning.
4. When the car air conditioner has a peculiar smell during use, it needs to be cleaned once; if you find that the car air conditioner has a peculiar smell, it is usually because the air conditioning filter is moldy, so you can first check whether it is a mold problem. If so, You can clean the car air conditioning filter according to the following methods, but if it is an air conditioner using activated carbon material, you need to go to a 4S repair shop or find a professional to clean it.
Car air conditioner cleaning method
1. Clean/replace the filter element
Under normal circumstances, an original air conditioner filter element The service life is one year or 30,000 kilometers. If the air conditioning filter element is cleaned frequently, it can not only ensure the fresh air in the car but also extend the service life of the air conditioning filter element.
The first step in DIY cleaning the air conditioning filter is to find the location of the air conditioning filter element. Because the location of the filter is different for each car model, some car air filters are placed under the front windshield of the car, and some are placed in the glove box of the passenger seat. Car owners can check the car manual, or Consult the car 4S store.
The disassembly methods of different brands of models may be slightly different, but generally it is not difficult. If not, you can check the vehicle manual.
If the air filter is not very dirty, the car owner can use a hair dryer to blow the air conditioning filter element clean from the inside out. At the same time, be sure to install the arrow indicators during installation, otherwise the air conditioning filter element will not only fail to work but will also blow dust into the car.
2. Air conditioning duct cleaning
Air conditioning duct cleaningFor cleaning, you need to buy air-conditioning cleaning agent, which car owners can buy online or at auto parts stores.
Before the official cleaning, shake the air conditioner cleaning agent well, put the hose in the package on, then turn on the air volume of the air conditioner to the maximum and adjust it to the external circulation mode. But do not turn on the air conditioner compressor (the A/C button is off).
Aim the shaken cleaning agent at the position of the air conditioning filter element and spray it. The suction inside will suck the cleaning agent in to clean the air conditioning ducts. Particular attention should be paid to the fact that the hose on the cleaning agent should not be too close to the blower to avoid being stirred in.
After the cleaning agent is sprayed, the car owner can let the air conditioning system run in the external circulation mode for another 10 minutes. After the engine is turned off, the cleaning agent will defoam and turn into liquid after cleaning the evaporator and air duct and flow out of the vehicle along the drain outlet.
3. Evaporator cleaning
As mentioned above, the cleaning of the air conditioning evaporator requires disassembly and cleaning of the air conditioning pipeline and evaporator, so it is recommended to go to a professional Repair shop cleaning.
How to maintain car air conditioners in summer
1. Turn off car air conditioners after parking
Car air conditioners in summer The air conditioner is often turned on inside the car, so be sure to turn it off after parking to avoid the air conditioner automatically turning on at the next ignition moment and increasing the burden on the engine.
2. Clean the air conditioning filter element
When the weather gets hot, the usage of car air conditioners will increase. If the air conditioning system is not cleaned, bacterial hazards will breed. to the health of drivers and passengers.
3. Don’t turn on the air conditioner for too long
Using the air conditioner in a car for a long time will cause excessive pressure on the condenser, which will cause losses to the refrigeration system. Therefore, if the temperature inside the car is suitable, you might as well turn off the air conditioner for a while.
4. Turn off the air conditioner when driving at low speeds
Try to turn off the air conditioner when the car is driving at low speeds. Do not run the engine at a higher speed in order to improve the efficiency of the air conditioner. This will shorten the life of the engine and air conditioning compressor.
5. Do not use the air conditioner for a long time under the scorching sun.
The temperature inside the car of a vehicle parked in summer is very high. Do not start the air conditioner immediately after starting the vehicle. It is best to open all the windows for ventilation and exhaust the hot air. After the temperature inside the car drops, close the windows and turn on the air conditioner.
6. Use internal and external circulation alternately
Regarding the internal and external circulation of car air conditioners, many car owners do not understand how to use them. The car is exposed to the scorching sun. When the car is parked for a long time, the temperature inside the car is higher than outside the car. If you turn on the internal circulation of the air conditioner as soon as you enter the car, it will not be effective. At this time, you should open the windows first.Turn on the wind and turn on the external circulation to exhaust all the hot air. After the temperature inside the car drops, switch to the internal circulation mode. This will have a better cooling effect. However, leaving the internal circulation open for a long time will make the air in the car less efficient. Fresh, so pay attention to using internal and external circulation modes alternately.
7. Occasionally turn on the maximum air volume setting
When car owners frequently use the air conditioner in summer, they will inhale a lot of dust, so they need to occasionally turn on the maximum air volume setting. Blow out the remaining floating dust in the air duct. To keep the air in the car fresh, the air conditioning filter element should be cleaned in time.
8. Control the direction of the air outlet
Principles for the air outlet of car air conditioners: when turning on the air conditioner, turn the air outlet upward, and when turning on the heating, turn the air outlet downward.
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