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7 Top Causes of Heat Failure

Now that Fall is coming to an end and winter is nearly here, we're going to depend more on our car or truck's heating system to keep us warm and comfortable. Not only that, but our HVAC enables us to defrost and clear our windscreens when the outside temperature doesn't equal the temperature inside the vehicle. We're sure you wouldn't be too happy to find that your heater is blowing out cool air or no air at all, which is why it's important to get down to the bottom of the problem ASAP.  Below are some of the most common reasons why your car heater may fail this fall/winter: 

  • Low coolant/radiator fluid can prevent your car or truck from producing and circulating warm air throughout your cabin. If you're low on this fluid, it probably means you have a leak somewhere in the system. Please do not wait to take your vehicle to our shop as low coolant can significantly damage the engine.
  • A blasted fuse somewhere in your vehicle can induce an electrical problem, affecting your car's ability to develop heat. If you need assistance checking on the fuse panel, bring your car to us.
  • A faulty heater core or a leak within the heater core can cause a lack of coolant flow, so it won't generate heat.
  • A bad water pump 
  • An old or broken serpentine belt can disrupt the overall function of your HVAC system.
  • A defective thermostat is also troubling because if it inaccurately reads the engine temperature for being too cold, it won't allow coolant to flow, which is necessary to generate warm air. 
  • A defective blower motor can also be the culprit. If there's no air at all flowing out of your vents, it's usually a problem with the blower motor.

As explained in the examples above, there are many different reasons your heating could stop working. While you may think you can continue driving, the potential reason behind a heating failure can be dangerous for you and your car. If you are experiencing any heating issues, you should have it inspected and repaired as soon as possible. If you need dependable HVAC or cooling system repairs, please do not hesitate to call or visit the pros at East Coast Auto Diesel! You can schedule an appointment online with us today.