What symptom is the evaporation box of automobile air conditioner broken?

Symptoms that will appear when the evaporation box of automobile air conditioner is broken: First, the engine power is reduced, that is, the power output is uneven and gradually decays, in other words, it is getting weaker and weaker. The second is to increase fuel consumption and increase your economic burden. Third, it is difficult to start the cold, that is, it is difficult to ignite and it is not easy to get into the car. Finally, a large amount of carbon deposits in the combustion chamber will also cause cylinder knocking, and the low-speed acceleration of the engine will make noise, which will damage the piston and crankshaft, lead to the increase of engine temperature and seriously affect the safety of the automobile. Fourth, the throttle valve fails, the engine shakes and the speed is unstable.

Cleaning steps of evaporation box of automobile air conditioner are as follows: 1. Start the engine, turn on the air conditioner and turn up the wind speed (the system is set to external circulation). 2. Insert the extension pipe of the cleaning agent into the air inlet of the air conditioner and spray it into the air inlet of the evaporator fan or directly. 3. Turn the air conditioner into cold air, and then spray it to the air inlet or fan inlet of the evaporation box. 4. Stop spraying 1 to 2 minutes, and continue spraying several times until the foam is dispersed. 5. Turn on the internal circulation of the air conditioning system, close the doors and windows, and keep the system running for 10 minutes.