2220 108th Lane NE
Blaine, MN

SERVICE GARAGE:  763-792-4949


heaterChecker the heater of your vehicle regularly. A malfunctioned car heater may stop functioning in the middle of the winter. When the heater isn’t working, there isn’t any way to defrost the mirrors and windows. Therefore, you won’t be able to eliminate ice and condensation. Driving without a heater can be a health and safety hazard. Therefore, you need to get your car’s heater fixed whenever you notice a problem.

Common Problems and Solutions to Fix Car Heater

Many people think that fixing a car heater comes among those repairs that require a professional. If you think the same, then there is good news for you. You can fix the car heater at home and save time and money. Here is how you can fix a malfunctioned car heater.

1.    Problem with the Fan

Sometimes, the fan fails to turn on due to some reason. In this case, the heater is okay, but the fan isn’t working. That’s why heated air couldn’t reach the car’s cabin. The first thing to check is the fuse. A blown fuse is the reason for heater malfunction. If the fuse looks fine, replacing the fan will solve the problem. This issue is common with older cars.

2.    Cooling System isn’t Working

The cooling system of the vehicle works as a small radiator. The engine generates enough temperature, which heats the water mix and coolant with the help of a thermostat. The mixture flows through the valves and hoses to reach the heating core. The fan distributes the air in the cabin by blowing away the heated core.

However, when the coolant level is insufficient, the core won’t properly work. Therefore, your car’s heater will malfunction. Also, the coolant might not work because of rust or dust particles. These contaminants prevent the heating core from spreading the car’s cabin heat. To fix this problem, you need to ensure that the coolant level is sufficient.

Also, check the coolant for the contaminant. Having a low coolant level means that there are leaks in the system. Therefore, you need to fix those leakages. Keep in mind that coolant doesn’t evaporate all alone and requires air from the fan.

3.    Thermostat is Stuck

If none of the above solutions helps, then your thermostat is likely causing the problem. Sometimes, the thermostat doesn’t open, preventing the coolant from heating the heating core. Therefore, the heat won’t flow in the cabin. Also, the thermostat might fail to open, which lowers the engine’s temperature. If you notice that the thermostat is the problem for the heater’s malfunction, you need to replace it immediately. If you fail to replace it in time, the vehicle might overheat.