The car air conditioning switch is not turned on. What happened to the hot air?

There is no direct relationship between automobile air conditioning and automobile warm air. Warm air is formed by introducing the engine coolant temperature into the cab. Your situation should belong to the radiant heat of the warm air tank.

Details are as follows:

Solve the problem:

1, engine failure

The phenomenon that the engine can't start may be that the ignition switch is turned on without any signs of starting, the starter is noisy but can't turn, the starter can turn but can't drive the engine, or the starter can drive the engine but can't start. The phenomenon of starting difficulty may be that the engine rotates slowly or the noise is uneven when the engine rotates. The starting difficulty may occur in freezing weather or extremely hot weather, or at room temperature, or it may be that the cold car is difficult to start for the first time and the hot car will start normally when it is hot. These phenomena are related to the main injector, cold start injector, temperature control switch, ECU and control circuit working poorly, battery power shortage, igniter or pulse generator damage, fuel system failure or abnormal oil supply. For an automatic car, the failure to start may be due to the incorrect position of the transmission handle.

2, automatic transmission failure

There are some problems, such as slow growth, big impact during automatic gear shifting, high oil temperature, no high gear, no starting, no change of gear shifting handle, etc. The faults of automatic transmission are mostly caused by untimely maintenance and adjustment, except for parts faults caused by long-term use.

3. Steering wheel swing or steering wheel jitter

When the car is driving, the direction is unstable and the steering wheel is shaking. It is caused by excessive steering wheel deflection, dynamic imbalance of steering wheel, loose steering mechanism parts, inaccurate front wheel positioning and air intake of power steering hydraulic system.

4. Brake failure

When braking is used while driving, the car cannot slow down or stop; After continuous braking for one or more times, the braking suddenly doesn't work. The fault may be caused by oil or gas leakage in the brake pipeline, rupture or falling off of the pipeline joint, failure of the brake seal, etc.

5, wiper failure

The performance is that the wiper is not working or weak, the swing amplitude and angle are incorrect, the speed change is not obvious or the speed cannot be controlled. It is related to the failure or maladjustment of mechanical parts such as wiper motor, speed change switch and wiper swing lever.