The reason why the Sagitar heater is not hot may be:
The heater water tank is clogged and the cooling system lacks coolant.
A clogged heater water tank will cause the coolant flowing through to slow down and cause insufficient heat, causing the air conditioner heater to become tepid, so it needs to be cleaned in time.
The lack of coolant in the cooling system will also lead to the phenomenon that the heater is not hot. This is also a common heater failure in daily car use.
Extended information:
How to troubleshoot the problem that the car heater is not hot:
1. The thermostat is always open or the thermostat is opened too early, causing cooling The system performs a large cycle prematurely, and the outside temperature is very low, especially when the car is running, the cold air quickly cools the antifreeze, the engine water temperature cannot rise, and the warm air does 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 low 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.