blog

Imagine on a cold winter night, your car's heater fails, and you're miles away from the nearest city. In such a scenario, especially if there's a child or an elderly person in the car, simply wearing warm clothes will no longer be sufficient to maintain body temperature. For this reason, understanding the causes of car heater failure and its symptoms is essential. In this article from Atlas Yadak, we will explore the causes and symptoms of car heater failure.

If the car heater is not functioning properly, the first sign is a lack of heat inside the cabin. After turning on the heater and when the engine reaches the appropriate temperature, warm air should flow from the ventilation vents into the car. If this does not happen, there is likely a problem with the heating system.

Various factors can cause the heater to malfunction or fail. From clogged hoses and cooling system pipes to electrical issues and radiator failure, all of these can lead to heater problems. Below, we will discuss the main reasons for these malfunctions:

   One of the common causes of heater failure is issues in the electrical system. Problems in components like the heater relay, wiring, temperature control switch, and other electrical or electronic parts can cause the heater to stop working.

   The fan or air circulation system plays a vital role in the heater's performance. If the fan fails, the warm air will not be directed from the vents into the cabin, and the car's interior temperature will not rise. This issue may be caused by a burnt fan motor or problems with the wiring and other electrical components related to the fan.

   The heater radiator is responsible for absorbing heat from the coolant. If the radiator becomes clogged or damaged, the coolant cannot properly transfer heat, and the heater will not function. This problem is usually caused by dirty coolant or blockages in the radiator's pores.

   The proper functioning of the car heater requires the coolant to circulate effectively throughout the system. If there is air trapped in the system or the coolant level is low, the heater will not work correctly. This problem may be caused by a blown head gasket or a drop in the coolant level.

   The water pump is responsible for circulating coolant through the system. If the water pump fails or cannot circulate the coolant effectively, the car's heater will not provide sufficient heat.

   The thermostat helps regulate the temperature of the coolant. If the thermostat fails and remains open, the coolant temperature stays low, preventing the heater from generating warm air.

To prevent heater failure and ensure it operates correctly, it is recommended to:

- Always make sure there is enough antifreeze in the car’s radiator. This fluid prevents the buildup of impurities in the system and prolongs the radiator's life.

- Change the coolant every two years.

- Periodically have the car's heater electrical system checked by a professional mechanic.

These simple steps can help ensure that your car's heater functions properly for an extended period, providing the necessary warmth during cold winter days.

send comment