Manual heating of Crv24 four-wheel drive is not hot;
1. It may be that the thermostat is always on or the thermostat is turned on too early, which makes the cooling system have a big cycle prematurely, while the outside air temperature is very low, the engine water temperature does not come up, and the warm air is not hot.
2. Blockage of the heater tank: In fact, the heater tank of an automobile can be regarded as a scaled-down radiator of the engine water tank, and its internal structure contains many tiny cooling pipes, so this structure, like the radiator of the water tank, is prone to internal blockage. After the blockage, the flow rate of the coolant in the heater water tank will slow down, and the flow rate will also decrease. Due to insufficient heating, the air-conditioned heater will naturally not be hot.
3. Warm water valve failure: After the warm water valve failure, the opening of the electronic control valve is no longer controlled by the computer, and it is in a state of normally open, normally closed or fixed in a certain position. At this time, there is no coolant flowing through the warm water tank or the flow rate is uncontrolled, so the warm air temperature of the air conditioner is naturally uncontrolled.
You can start the engine to run normally, warm it up for a period of time, and then turn on the warm air after the temperature pointer of the water thermometer reaches the middle position. At the same time, the air circulation is set to external circulation, and the cold air is discharged from the car first, and then switched to internal circulation after 2-3 minutes, so that the car will warm up in a short time and will not burden the engine.