1, replace the dust filter
Conventional air conditioning system cleaning includes the replacement of filter element, the use of detergent and removal of cleaning. Replace the dust filter is a simple way, the cost is low but can keep the air inlet unobstructed, a little bit of mechanical common sense owners can clean their own hands. The dust filters on most small cars are under the windshield in the front of the car, covered by the flow tank. When replacing the dust filter, you can first lift the engine cover, remove the clip of the fixed flow water tank, remove the flow water tank, you can see the dust filter. If the dust filter is not used for a long time, you can use high pressure air to blow clean; If it has been blocked, directly remove and replace an original dust filter, and then install it as it is.
2. External circulation duct
There are many kinds of cleaning agent on the market for cleaning air conditioning duct, owners can buy their own. Remove dust filter, launch vehicles, open air conditioning and air conditioning in outer loop, the foamy cleaner spray to the dust filter, air conditioning outside circulation wind will put the detergent in the suction air duct, the air duct and air conditioning evaporator and heater tank * *, odor removal, sewage becomes liquid flows from the outlet of the air conditioning. After the cleaning work is completed, the dust filter will be replaced, and the air outlet in the car will blow out the fresh air.
3. Send it to the maintenance station for cleaning
The replacement of dust filter and the use of cleaning agent to clean the air duct are cleaned from the outside of the air conditioning system. If the air volume of the outlet is still small and the smell is not completely removed after cleaning, it can only be removed from the bellows, replaced the evaporator and manually cleaned the shell of the air conditioning heating device to the repair factory. However, bellows are generally installed under the instrument of the car, the maintenance workload is very large, the cost is higher.
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