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3 Signs It’s Time to Replace the Blower Motor in Your Furnace

When winter rolls around, your furnace becomes a vital appliance to keep your home cozy and warm. The last thing you want to experience during a chilly night is a malfunctioning furnace blower motor.

Unfortunately, over time, the wear and tear effects can catch up with your furnace, as is the case with most elements in an HVAC system. It’s almost inevitable.

What Causes Blower Motor Failure?

The blower motor of your HVAC system, like other components, can become worn out over time. Overheating and excessive moisture are two common reasons for blower motor failure. Dust, dirt, and debris accumulation can also result in the windings and bearings burning out more quickly. Since furnaces are typically located in out-of-the-way areas such as the attic, basement, garage, or utility room, blower motors can fail due to overworking or electrical shorts when clogged with debris or saturated with moisture.

When replacing the blower motor in your HVAC system, it’s important to consider how frequently you need to pay for repairs. Most residential furnaces have a lifespan of 15 to 20 years, and regular maintenance can prolong the furnace’s life even further. However, if you are frequently replacing the blower motor every few years and your furnace is reaching the end of its lifespan, it may be more cost-effective to replace the entire furnace instead of paying for increasingly frequent repairs.

What Are Signs Your Blower Motor Needs to Be Replaced?

These are some sure-fire signs that your furnace motor blower needs to be repaired or replaced?

1. Grinding or Screeching Noises

When using your furnace, you may hear unusual sounds like clanking, squealing, rattling, or screeching. To diagnose the issue, pay attention to the sounds and follow these tips:

  • Listen closely when your furnace starts blowing warm air. If you hear a rattling noise, your blower motor may need a ball bearing or there may be a loose screw that requires tightening.
  • Screeching noises during furnace operation may indicate a blower motor issue. Typically, screeching results from a frayed or torn belt, which is a common problem in older, belt-driven furnaces. Fortunately, HVAC technicians can replace frayed belts if the motor is otherwise functioning correctly.
  • When in doubt, contact your heating contractor for assistance. A technician will conduct a thorough inspection to identify the source of the noise and recommend appropriate solution.
2. Little or No Airflow

If you’re experiencing a lack of airflow from your vents, this is often a strong signal that something is awry with your HVAC system. Our team of skilled technicians can identify the issue and resolve it for you, usually stemming from a faulty blower motor.

Sometimes, your blower motor may still be operational but struggling, resulting in a decrease in the airflow through your registers. You may notice that the vent closest to your furnace has stronger airflow than those located further away, such as those upstairs.

When there’s no warm air coming through your heat registers, it’s likely that your blower motor is broken. This typically implies that the blower motor has failed entirely, indicating there may have been previous problems. By keeping an eye out for other signs of blower motor issues, you can get it repaired before it fails completely.

3. Unusual Odors or Burning Smell

If you notice an overheating odor or the smell of burning dust coming from your air vents when you turn on the furnace, it might indicate a blower motor issue. It could be due to dirt accumulation or some mechanical parts rubbing against each other, generating heat and strange odors.

Don’t procrastinate if you suspect your blower motor might be overheating. Call your heating contractor as soon as possible to avoid further complications. If you’re looking for reliable heating and air conditioning services in Northern Illinois, get in touch with G & R Heating and Air.

Replacing Your Furnace Blower Motor

When it comes to your heating, ventilation, and air conditioning system, it’s important to have the right blower motor. Luckily, your local licensed HVAC contractor can help you find and install the perfect one. To get started, your heating contractor will need some information about your furnace and take into account various factors such as the type of drive, the diameter of the motor, rotation direction, horsepower, voltage, speeds, and size of the capacitor. With these details in mind, the HVAC company can provide you with an accurate estimate, recommend the right motor, and schedule a hassle-free installation.

Finding a HVAC Contractor for Heating Repair

G & R Heating and Air can help homeowners with a replacement blower motor for your furnace, or any other residential heating repair. We serve Northern Illinois. We are licensed and bonded, and have served the North and West suburns since 2014.  We proudly install Champion Furnace and Air Conditioning Units.

If you need furnace repair or furnace replacement, fill out a service request, or call (224) 419-5324.

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