12 Peugeot 508 air conditioner heater won't heat up. What happened?

1, the amount of cooling liquid is too small, and the heating heat is transferred through the cooling liquid, which will affect the heating effect of the air conditioner. When the owner finds that the air conditioner is not heating, he should first check the amount of coolant, and add it in time if it is missing;

2. The radiator fan is damaged. When the air conditioner is heating, the radiator fan is in a non-rotating state. If the fan rotates, the coolant in the water tank cannot be heated normally, and the air conditioner will not heat;

3. The heating water tank is blocked, and other impurities such as dust will block the water inlet pipe, so that the heating cannot be transmitted normally. At this time, it is necessary to clean the warm air tank. When cleaning, you need to remove the water inlet pipe first, and then clean it with a high-pressure water gun. The cleaning effect will be better.

4. There is air resistance in the refrigeration system, which will affect the heating performance of the air conditioner. The air resistance in the refrigeration system will be discharged, so that the heating performance of the air conditioner will return to normal state;

5. The heating function of the air conditioner is turned on too early, and the heat for heating comes from the engine. If the car has just started and the engine turns on the heating prematurely before reaching the set working temperature, then it is not hot. Wait until the engine temperature rises gradually, and then turn on the heating when the car heats up, which will have better heating effect;

6. Abnormal working conditions of coolant circulation valve and flow valve will affect the temperature of coolant, so the circulation valve and flow valve should be overhauled.