Why is one of the Sagitar heating pipes hot and the other cold?
The reasons why a car on Pacific Automotive Network turns on the heater while being hot and cold at the same time are: 1. The air conditioning filter element is broken; 2. Lack of refrigerant; 3. The passage of the heater water tank is blocked, resulting in insufficient hot water; 4. There is not enough refrigerant or too much refrigerant; 5. The warm water valve is clogged; 6. The compressor power is low and the high and low pressures are abnormal; 7. The air duct on the non-heating side is not opened or blocked. Check the hot and cold air control of the heater box. Check whether the flap cable has fallen off, whether the heater impeller is damaged, whether the flap has fallen off, etc.
1. The thermostat is always open or the thermostat is opened too early, causing the cooling system to undergo a large cycle prematurely, while the outside temperature is very low, especially when the car is running, the cold wind quickly kills the antifreeze. With liquid cooling, the engine water temperature will not rise, and the heater air will not heat up.
2. The water pump impeller is damaged or lost, causing insufficient flow through the small warm air water tank and preventing heat from coming up.
3. There is air blockage in the engine cooling system. The air blockage leads to poor circulation of the cooling system, causing high water temperature and poor heating of the warm air. If there is always air in the cooling system, it is likely that the cylinder gasket is damaged and air is flowing into the cooling system; if the water inlet pipe of the small heater water tank is very hot and the water outlet pipe is cold, this situation should be that the small heater water tank is blocked. , the small heater water tank should be replaced.
The car heating system blows cold air to the surface of the heat exchanger, absorbs its heat and guides it into the car, thereby increasing the temperature inside the car.
The heat source of water-heated heater systems comes from engine coolant. Water-heated heater systems are mostly used in cars, large trucks and buses with low heating requirements. The water heating heating system mainly consists of a heater, a hot water regulating valve, a blower, a control panel, etc.
Among them, the blower consists of an adjustable-speed DC motor and a squirrel-cage fan. Its function is to blow cold air toward the heater, and then the cold air is heated and sent into the car. By adjusting the speed of the motor, the amount of air supplied to the cabin can be adjusted.
(Pictures/Text/Photos: Pacific Automotive Network Question and Answer Calling the Beast)