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car ac dashboard

Your car’s heater is a lifesaver in cold weather, but much like every other system in a vehicle, it is vulnerable to malfunction. Visiting a mechanic as soon as you notice your car’s heating system isn’t working properly is important if you want to stay comfortable this winter season. Here are a few reasons your heater may malfunction:

  • Broken Circulation Fan
    The engine runs much hotter than most drivers realize, and requires a liquid coolant (anti-freeze) in order to dissipate its excess heat. Warm coolant passes through the heating unit before heading to the radiator, and the circulation fan sends this air across the unit, through the vents, and into the cabin. If a circulation fan snaps a blade, less air will come out of vents when the heat is engaged.
  • No Coolant
    If an engine doesn’t have enough coolant, it will not only be subject to overheating, but will also fail to heat the cabin effectively. Adding anti-freeze will likely fix this problem, but if the shortage is caused by a leak, you will need an inspection and repair.
  • Burnt-Out Motor
    Another common malfunction is a blown fuse or a burnt-out blower motor. The motor that drives the circulation fan can wear down after time and cause a short circuit. If a fuse is blown, this is an easy fix. However, if the problem is with the motor itself, a mechanic will need to work on the vehicle.

When it comes to heating and cooling, no one knows more than Murray’s Auto Clinic. We have the skills and experience necessary to tackle your automotive repair needs. Call us at 301-585-7557 or visit us online to find out more about our car shop in Silver Spring.