What's wrong with Audi A6L air conditioner?

Automobile air conditioning is a very important comfort equipment in automobile, but when there is a problem in any stage of air conditioning system software, it will endanger the actual effect of automobile air conditioning refrigeration. Why is the A6L air conditioner of Audi cold and hot? When this happens, we can follow the steps of clearing the fault to deal with the problem.

A6L air conditioner has been treated for cold and heat.

1. The heater water tank is blocked.

Solution: Check whether the temperature difference between inlet and outlet water in front of the heater box is large. If this happens, the heater box must be blocked. At this time, the heater box needs to be removed and replaced before handling the fault. The factors leading to this failure are generally caused by the long-term non-replacement of automobile antifreeze.

2. The heater inlet valve fails or the route of the air conditioning operation panel fails.

Solution: Turn off the engine, operate the two control lines of the main driver and front seat valves, with the ground wire in the middle (the control line will be positive only when everyone turns on the air conditioner), connect the control lines of the main driver or front seat, and check whether the automobile relay and fuse work normally. If the positive stage is short-circuited, the automobile warm air inlet valve will fail and need to be repaired or replaced. If the air conditioning operation panel is short-circuited to the positive pole, replace or repair the air conditioning operation panel.

3. Poor heat dissipation of condenser

Solution: The main function of the cooling fan is to cool the water tank atlas and condenser. If the cooling fan is used for a long time, the carbon brush of the motor and its contact with the motor rotor will be damaged. If its speed is insufficient, it will cause poor heat dissipation of condenser and water storage tank. If the motor carbon brush or motor rotor is not replaced on time, the cooling fan will not work normally, resulting in poor cooling of the condenser and cold air conditioning.