Why Does My Blower Motor Keep Dying?

by | Last updated on January 24, 2024

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If the engine on your blower runs then dies, you might need to check the tank vent, ignition coil, or gas cap . ... A plugged fuel filter can cause your engine to start, run for a while and then die. The fuel filter on your leaf blower connects to the fuel line, and filters out any debris that may be in the fuel tank.

What are the signs of a bad blower motor?

  • Weak Airflow from the Vents. This is usually the first indication that you may have a faulty blower . ...
  • No Airflow at All. ...
  • Unusually High Energy Bills. ...
  • Strange Sounds. ...
  • Overheating.

Why does my blower motor turn on and off?

If your blower is constantly turning on/off when the furnace isn't heating... ...you most likely have a bad fan limit switch . ... The system uses a “temperature probe” to detect temperature changes inside the heat exchanger (see image below) and turns your blower on and off in response.

Why does my leaf blower dies when I give it gas?

If the air filter in your leaf blower is partially plugged, it can cause your engine to run, but die at full throttle . The air filter is designed to prevent debris from entering the engine, and over time this debris can accumulate and lead to a clog. ... A clogged air filter may cause your blower to idle roughly as well.

What causes a fan motor to over amp?

Electrical overload or over-current is caused by an excessive current flow within the motor windings , exceeding the design current which the motor is able to carry efficiently and safely. This can be caused by a low supply voltage, resulting in the motor drawing in more current in an attempt to maintain its torque.

What does a bad blower motor sound like?

You might hear this as a noise coming from directly behind the vent, perhaps a light slapping , or a sudden pop before you notice a problem with airflow. Whirring noises might also result from a bad bearing in the motor. ... This is a telltale sign of a bad blower motor.

How much should it cost to replace a blower motor?

Cost to Replace Central or Forced Air Blower Motor

Replacing a blower motor costs $450 on average with a typical range of $250 to $800. With a warranty, you might pay as little as $150 for labor alone. For high-end models, like those with large motors or access issues, you might pay as much as $2,000.

How long does a blower motor last?

The blower motor in your home or office should last anywhere from 10 to 20 years . Modern sealed bearings and sealed bushings can push the lifespan to its maximum of 20 years.

Why does my electric leaf blower keep shutting off?

The most common causes of this annoying issue with gas leaf blowers are filters and air/gas mixture. ... The air filter is clogged . If an air filter is clogged, it may allow enough air through for the engine to run at idle.

What causes engine bogging?

The problem of an engine bogging out is commonly caused by inefficiency of fuel or air flow or ignition to the carburetor . ... Check the Air Filter: The most common reason why an engine bogs out under acceleration is because the air/fuel mixture is ‘dirty' or inefficient.

What causes electric motor to heat up?

Electrical overload caused by excessive voltage supply or overwork by drawing more current will lead to overheating issues. As the motor works harder or under unusual load, heat will be the chief byproduct, leading to failure. 2. Low resistance is the most common reason behind electric motor failure.

How do you check a motor short circuit?

You should test the windings for a “short to ground” in the circuit and open or shorts in the windings. To test your motor for short to ground, you'll need to set the multimeter to ohms and disconnect the motor from its power source. Then inspect each wire and look for infinite readings.

Will a bad capacitor cause a motor to overheat?

If a run capacitor fails, the motor can display a variety of problems including not starting, overheating, and vibrating. A bad run capacitor deprives the motor of the full voltage it needs to operate correctly .

Can you drive with a bad blower motor?

A bad heater blower motor will not affect the safety of your car, with the possible exception of you not being able to clear the windshield of snow, ice, or condensation if the defrosters don't work. But you won't be comfortable inside your car, especially during the cold of winter and the heat of summer.

Why is my blower motor loud?

Loud noises you hear when your car's heater or air conditioner are on typically indicate a blower motor issue. The good news is that a blower motor problem like this can be the result of something as simple to fix as debris or trash that got caught in it .

David Evans
Author
David Evans
David is a seasoned automotive enthusiast. He is a graduate of Mechanical Engineering and has a passion for all things related to cars and vehicles. With his extensive knowledge of cars and other vehicles, David is an authority in the industry.