What Is a Blower Motor? The blower motor is a component in your HVAC system that blows the conditioned air through the vents in your home. It takes the cool air created by your air-conditioner and circulates it throughout your indoor space to ensure that the temperature reaches the level dictated by the thermostat.
What is the purpose of a blower motor?
A blower motor takes the heated or cooled air created within the furnace and circulates it throughout the home in order to ensure the temperature reaches what’s called for on the thermostat. It does this by spinning a fan, which blows the air through the ventilation system of your home.
What is the difference between a fan motor and a blower motor?
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.
What is a blower motor?
The blower motor is the fan that pushes heated or cooled air through dashboard vents based on the climate system settings and the fan speed selected. … The blower motor is usually under the dashboard on the passenger side.
How do you know if your blower motor is bad?
Signs and Symptoms of a Bad AC Fan Motor
- The fan won’t start even though the AC is on.
- The fan won’t stop, even when you shut the AC off.
- The fan turns on, yet the blades are rotating very slowly.
- There’s a rattling noise coming from the condenser unit when the fan is turned on.
How much does it cost to fix a 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 do blower motors last?
The average lifespan of an HVAC blower motor is between 12 and 15 years. Fortunately, your HVAC blower motor doesn’t need much maintenance to survive this long.
Is a blower the same as a fan?
Generally, fans are devices that move larger amounts of a gas with a very low increase in pressure. The term blower is sometimes used interchangeably with fan. In general, a blower has a slightly higher pressure rise than a fan: from 1.11 to 1.2.
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.
What’s the difference between a blower and a fan?
A fan circulates air around an entire room, or space. A blower circulates the air only on the specific or pointed area. It is uses less pressure to produce large amounts of gas.
Can a blower motor be repaired?
Blower Motor Replacement: When Good Parts Go Bad. … There are a number of things that can go wrong with your heating system, but if the air stops blowing altogether and the same is true on cold air settings, a blower motor replacement is likely in order. The good news is that it’s a fairly straight forward repair.
What does a bad blower motor sound like?
A defective blower motor will make a continuous sound noticeable by the passengers in the vehicle. It can manifest as a knocking, whirring, clunking, vibrating, squealing, or whining noise that persists until the blower motor is replaced.
What fuse is for the blower motor?
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.
What happens when fan motor goes out?
The fan motor is what turns the fan. If the motor is going bad, it can affect your air conditioner’s ability to circulate cool air and you main need a certified air conditioning repair technician to look at it..
What happens when your blower motor goes out?
No air from the vents
If the heater blower motor burns out or short circuits, it will not function, and therefore will not be able to produce any airflow for the system. The blower motor will usually have to be replaced in order to restore proper operation to the system.
Can you drive with a bad blower motor?
If your blower motor stops working or even short circuits, you will have no airflow produced for the system. … Additionally, a bad blower motor can also disable a completely operational A/C and heating system. Of course, you will not want to drive your car in extreme heat or cold from outside.