Why Isn’t My Car Heater Working?

If your car heater starts blowing cold air and suddenly stops working in the middle of winter, it can make it downright miserable.
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 If your car has no heat, not only would the inside of your car feel like an ice box, but a broken heater can prevent your defroster from blowing warm air to your windshield to eliminate ice and fog, which can pose a hazard while driving. Not having a working heater in your vehicle could even become a dire situation, if you end up stranded.

Why is my car heating not working?

 A car heater can stop working for a number of reasons, including:

• A low antifreeze/water level in the radiator due to a leak in the cooling system.

• A bad thermostat that isn’t allowing the engine to properly warm up.

• A blower fan that isn’t working properly.

• Coolant that contains rust particles or becomes otherwise contaminated and is blocking the heating core from circulating air into the cabin properly.

 

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Maintenance can prevent car heater failure

Several components make up the heating system, so unless you have experience with car maintenance, it’s best to have Texas Auto diagnose the problem.

In general terms, a heating system works when the vehicle receives heat from the engine’s coolant system. Once the engine reaches its operating temperature — controlled by the thermostat — it heats up the coolant and water mixture, passes it through hoses and valves and into the heating core, which resembles a miniature radiator.

A blower fan then pushes the warm air from the heating core through the cabin filter and into the vehicle.

The No. 1 tip, mechanics say, is to have a mechanic asses your car heater regularly by having a mechanic checking the coolant level and the other components.

Have your heater checked today- schedule a service appointment now

Service hours: Monday-Friday 8AM-6PM / Saturday 9AM-3PM 

Contact Texas Auto Service (281) 938-2059

 

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Why Isn’t My Car Heater Working?

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