Unlike the condenser fan motor, the blower motor is located indoors. It’s the component that blows cool air through the ducts and into different parts of your home. … A single-speed motor can only operate at one speed, while a variable-speed motor can adjust its speed to produce different levels of airflow.
How do you know if your blower motor is bad?
You might also hear ongoing whirring noises, or noises that change or get louder if you increase the fan speed. These are all signs of problems with the blower motor. In some cases, you may even notice smoke or smells of burning while driving, in which case you should pull over immediately.
Are the furnace fan and blower the same thing?
Most central heating systems in existence today are forced air systems and therefore require air to be moved in some way. A furnace fan, also known as a furnace blower, is one of the easiest ways to accomplish this. Most furnace fans come with a motor that is one horsepower or less.
What happens if your fan motor is bad?
If there’s something wrong with the fan motor, it could cause the blades to start acting strangely. The blades might not start up when the air conditioner does, or they might not stop spinning once the air conditioner shuts off.
Which is better cooler with fan or blower?
Airflow: … But blowers create high pressure airflow from the cooling system with higher speed and air throw. Hence fan type coolers are ideal for entire room cooling whereas blower types are good for instant cooling in a specific area.
What can cause a blower motor to stop working?
In a situation where the motor doesn’t work on any speed, the most likely causes are: a blown power supply fuse, a bad motor ground connection, bad motor speed control module or a failed motor. On all systems, a failed blower motor is least likely. Start by checking the blower fuse and HVAC controller fuse.
How much does it cost to fix 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 does furnace fan work?
The blower motor turns the blower fan, sending the air through your air ducts and into each room of the home. If your blower motor is single-speed, it will operate at 100% speed until the thermostat indicates that the desired temperature has been reached.
What are blower fans used for?
But, primarily, both fans and blowers are used for cooling and air circulation either in indoor areas, HVAC systems, or inside industrial machines as well as electronic equipment.
Why do fan motors fail?
The main causes of failure are loss of lubricant, a failed run capacitor, a failed bearing in a belt drive, a little water dripping into the windings or a voltage problem. So technicians should carefully check to find the cause of a failure before changing the motor.
What causes AC fan motor to burn up?
The fan will stop circulating the air throughout your HVAC system. It most commonly occurs when the blower fan motor becomes aged or is overworked. A lack of regular maintenance is generally to blame for blower fan burnout.
How long do AC fan motors last?
An AC fan motor can last more than 12 years if it’s kept clean and cooled as needed. On the other hand, without annual maintenance checkups, your fan motor may only survive between one and three years.