What is the life expectancy of a blower motor?
The life expectancy of a blower motor can vary depending on several factors, but on average, a well-maintained blower motor can last between 10 to 15 years. Blower motors are essential components in heating, ventilation, and air conditioning (HVAC) systems, responsible for circulating air throughout a building.
Factors Affecting Blower Motor Lifespan
The lifespan of a blower motor is influenced by several factors, including:
- Usage and Duty Cycle: Blower motors that run continuously or are used in high-demand applications, such as commercial HVAC systems, tend to have a shorter lifespan compared to those in residential settings with intermittent use.
- Maintenance and Cleaning: Regular maintenance, such as cleaning the motor and replacing worn parts, can significantly extend the lifespan of a blower motor.
- Environmental Conditions: Exposure to extreme temperatures, humidity, or corrosive environments can accelerate the wear and tear on a blower motor, reducing its lifespan.
- Motor Design and Quality: Blower motors with higher-quality components and more robust designs generally have a longer lifespan than lower-quality models.
By understanding these factors and taking proactive steps to maintain and care for their blower motors, HVAC system owners can maximize the lifespan of these critical components.
Signs of a Failing Blower Motor
As a blower motor nears the end of its lifespan, there are several signs that may indicate it's time for replacement, including:
- Increased Noise: Blower motors that make unusual noises, such as grinding, squealing, or rattling, may be experiencing bearing or other mechanical issues.
- Reduced Airflow: If the blower motor is not able to circulate air as effectively as it once did, it may be a sign of a problem with the motor or the HVAC system as a whole.
- Increased Energy Consumption: A failing blower motor may require more energy to operate, leading to higher utility bills.
- Frequent Breakdowns: If the blower motor is requiring more frequent repairs or replacements, it may be nearing the end of its useful life.
By monitoring these signs and addressing any issues promptly, HVAC system owners can help extend the lifespan of their blower motors and ensure the continued efficient operation of their heating and cooling systems.
How much does it cost to replace a blower motor?
Replacing a furnace blower motor costs $560, on average. Depending on the size and type of motor, most people pay $300 to $900. The average blower motor replacement cost is $560, but the final price depends on labor fees, as well as the cost of the parts.
What breaks a blower motor?
One of the more common problems in a blower motor is the bearings. Bearings surround the motor shaft, allowing it to run smoothly at high RPM with almost no friction. When the bearings go bad, the motor may make a grinding or screeching sound, or not run at all because of the friction preventing the motor from turning.
How do I know if my blower motor needs to be replaced?
No Airflow
If you notice that there is no warm air at all coming through your heat registers, then you may have a broken blower motor. This generally means the blower motor has failed completely, which may indicate there have been problems for a while.
How long should a blower motor last?
Furnace blower motors typically last 10 to 20 years, with regular maintenance significantly extending their lifespan.
Why would a blower motor go bad?
An HVAC blower motor will occasionally fail due to age, wearing out, or not being cleaned regularly. Symptoms may include strange noises, burning smells, or just plain refusing to turn on.
Is it worth replacing a blower motor?
Replacing the blower motor is likely the best decision if your furnace is under warranty or relatively new. It might be better to replace the furnace if it's old or has a lot of issues that require frequent repairs. On average, a new blower motor costs $300 to $900.
What causes a blower motor to burn out?
Some of the reasons a blower motor might fail are overheating, and excessive moisture. When dust, dirt, and debris build up, it can cause the windings and bearings to burn up more quickly.
How do you tell if it's the blower motor or resistor is bad?
You'll be turning the switch wanting a higher speed only to find out it's all the same. The fourth symptom is the motor works on some speeds. And not others.
What causes a blower motor to go bad?
Overheating is one of the most frequent occurrences that can render the blower motor inoperative. If the motor has overheated, it may shut itself down to prevent damage. You should keep your HVAC clean and clear of any blockages or debris to avoid overheating and maintain efficiency.
How do you know if your blower motor is going out?
Strange Rattling, Clanking, or Screeching
One of the first signs you may notice when there's an issue with the blower motor is a strange noise coming from the indoor unit or air handler. Different noises will indicate different problems.
