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Why isn't the heater in my 2001 Hyundai elantra working?

Why isn't the heater in my 2001 Hyundai elantra working?

The most common reasons a Hyundai Elantra heater isn't working are a broken heater blower motor, a problem with the thermostat, or a failed heater blower motor resistor.

  1. Why is my car blowing cold air when the heater is on?
  2. Why is my Hyundai Elantra blowing cold air?
  3. What causes the heater in a car not to work?
  4. Can a blown fuse cause heater not to work?
  5. Why is cold air coming out of my vents when the heat is on?
  6. Why isn't my AC or heat working in my car?
  7. Which fuse is for the heater blower?
  8. How do I know if my heater fuse is blown?
  9. Is there a fuse for the heater blower in my car?

Why is my car blowing cold air when the heater is on?

Low Coolant Level

The coolant (usually a mixture of water and antifreeze) in your engine doesn't just work to keep the engine from overheating: It's also the source of heat supporting the heating system. If there isn't enough coolant in your system, the heater core will blow cold air into your car.

Why is my Hyundai Elantra blowing cold air?

Engine Coolant Shortage

Coolant is an antifreeze-water mixture that cools down your engine. ... While the air may feel cool for a short period as the engine warms up, cool air throughout your drive could mean that there isn't enough coolant to reach the heater core.

What causes the heater in a car not to work?

Most Common Causes of Car Heater Malfunction

The heater switching system might be faulty. The cabin air filter might be choked, restricting the airflow through the heater core. The thermostat valve might not be working right. The heater core might be clogged.

Can a blown fuse cause heater not to work?

Fuses. A blown fuse is a symptom not a cause. ... Always use a replacement fuse with the same amp rating as the original. If a new fuse blows as soon as the blower is turned on, the heater circuit or motor may have a short that should be investigated.

Why is cold air coming out of my vents when the heat is on?

Your Air Filter Is Dirty

Clogged air filters could be causing cold air to blow out of your vents. A dirty air filter can block airflow over your furnace's heat exchanger, which can cause it to overheat.

Why isn't my AC or heat working in my car?

Faulty Thermostat

A faulty or broken thermostat is the most common cause of your car's failing heat. Stuck open or stuck closed, the part can not only cause issues with your heat but also your engine's cooling system. One becomes an issue of comfort, the other becomes an issue of “Oh no, I've borked my engine.”

Which fuse is for the heater blower?

To protect the blower motor power circuit, a 20-, 25- or 30-amp fuse is usually located in the fuse panel under the dash. The rating of the fuse will depend on the vehicle application and how much power the blower motor requires at full speed.

How do I know if my heater fuse is blown?

You may also need to use your multimeter to check if your fuses are blown. You can quickly determine by checking resistance with a multimeter. A good fuse will have nearly zero ohms of resistance, if the fuse is blown there will be no reading.

Is there a fuse for the heater blower in my car?

If the fan doesn't work, before pointing the finger at the blower motor, check fuses for the motor to make sure they're still good. Many vehicles have two fuses for the blower motor, one in the interior fuse block and the other under the hood. The blower motor is usually under the dashboard on the passenger side.

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