Why is the Wuling Light heater not hot?
Pacific Automotive Network Wulingzhiguang heater is not hot, which may be caused by blockage of the heater water tank, lack of coolant in the cooling system, or failure of the thermostat. First check the hot and cold windshield to see if the air conditioner is adjusted to the hot windshield; then check the electronic fan temperature control switch; then check the water temperature thermostat. Finally, check the coolant. If the coolant is missing, add coolant.
The reasons why the car heater is not hot and the solutions
1. The heater water tank is clogged
The structure of the heater water tank is actually a reduced version of the engine water tank for heat dissipation. There are many small heat dissipation pipes inside, which are easy to get clogged inside like the water tank radiator. When the inside of the heater water tank is clogged, the coolant flowing through becomes slower, the flow becomes smaller, the heat is insufficient, and the air conditioner warm air is naturally not hot.
2. The cooling system is short of coolant
The coolant is commonly known as antifreeze, and the warm air from car air conditioners comes from this. The principle is different from that of household air conditioners. The automobile warm air circulation is a pipeline connected in parallel to the small engine coolant circulation pipeline. The pipeline is connected to the warm air water tank. The blower blows the warm air water tank to produce warm air. This is how the air conditioner warm air comes. Lack of coolant in the cooling system is the most common and easiest to solve fault that causes the heater to not heat up.
3. Thermostat failure
A common failure of the thermostat is that it cannot be opened, but the reason why the heater is not hot due to thermostat failure is that the thermostat is turned off. If not, it is commonly known as the thermostat is always open. After the thermostat is normally open, the coolant circulates widely from the engine idling. If the water temperature is low for a long time in the northern winter, the air conditioning warm air will naturally not be hot. It can also be clearly seen from the water temperature gauge that the needle is significantly lower than the normal scale. In addition, if the engine water temperature is low for a long time, it will lead to excessive fuel consumption and increased wear (the engine is not working at the optimal temperature). If the water temperature is low for a long time, it must be repaired and inspected immediately.
(Photo/Text/Photo: Zhang Guiye of Pacific Automotive Network)