Here’s How To Maintain Your Car’s Heater

February 20, 2023 12:00 am Published by Leave your thoughts

Winter is in full force, and one part of your car you want to ensure is working is your car heater. If your car heater isn’t working properly, there are some tips you can use to keep it in tip-top shape.


Coolant helps your engine maintain its temperature and keeps your heater running. To check the coolant level, look for a white, translucent reservoir tank near your radiator and make sure that the fluid inside reaches at least the "full" line. If the level is below that line, you can top it off with a 50/50 mix of antifreeze and water. You should also check if your coolant has been flushed and refilled in the last two years. Always check with a trusted mechanic if you need to.


The thermostat regulates the coolant flow in your car and helps maintain the engine’s temperature. A car blowing cold air when the heat is on could signify a broken thermostat. It can get stuck or open and affect your heating and cooling system.

Clogged Heater Core

Your car’s heater core is responsible for producing warm air, and it can get clogged, especially if your coolant is old or has not been flushed in a while. If this happens, you must flush out the system and replace any dirty coolant. It can also occur if the radiator debris attaches to the heater core.

Faulty Controls

One overlooked reason your car heater isn’t working is malfunctioning buttons. If the controls are not set correctly, your heater won’t be able to perform due to lack of power. Check the knobs and buttons to ensure nothing is stuck or broken before attempting a significant repair.

Water Leaks

There are several locations where water leaks can occur. You should always inspect your radiator, hoses, and water pump for any signs of damage. If you have leaks on any of these parts, your car heater won’t work correctly.

Damaged Heater Fan

Your heater fan is responsible for blowing air inside your car. If the fan isn’t running, it’s likely due to a bad fuse or electrical issue. Check the belts beneath your hood, as they can create vibration and noise that will prevent your fan from functioning correctly.

There’s nothing more puzzling than a car issue you can’t figure out. However, you can get ahead of the game and inspect your car’s heater regularly to ensure it’s working properly during the winter months. With these few simple steps, you can keep your car’s heater running smoothly. Cheers to warmer rides!

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