How do you replace a draft inducer blower?

Asked By: Delena Suanez | Last Updated: 28th March, 2020
Category: home and garden indoor environmental quality
4.1/5 (214 Views . 37 Votes)
How to Replace a Furnace Draft Inducer Blower
  1. Step 1 - Purchase the Part. Have a good look at the furnace draft inducer blower that exists inside your furnace.
  2. Step 2 - Turn off the Power.
  3. Step 3 -Remove the Draft Inducer Blower.
  4. Step 4 - Install the new Draft Inducer Blower.

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Also know, how much does it cost to replace a draft inducer motor?

Replacement Considerations The cost of labor is not. Total cost to replace a furnace draft inducer motor ranges from $85 to $1,150. Motors on high-performance furnaces can be quite expensive. The range includes DIY installation, a possibility discussed later, and professional installation.

Similarly, how long do inducer Motors last? Simply put, an inducer fan should start up when your thermostat calls for heat. It will do this anywhere from 30 seconds to one minute. It then stays running for as long as your system is heating the house and shuts off when your system cycles off.

Just so, what does a draft inducer blower do?

A furnace draft inducer blower is a relatively new component of modern furnaces that became part of heating units after government-mandated efficiency standards were enacted. The draft inducer blower's purpose is to move air and gases out of the furnace and up through the chimney.

How much does it cost to fix a furnace blower?

On average nationwide, a furnace blower motor replacement costs $400-$600, including parts and labor. A single-speed blower motor costs around $450 to replace while a variable-speed motor costs $600+.

39 Related Question Answers Found

How long does a furnace last?

Average Furnace Lifespan
While some furnaces can last over 40 years (extremely rare), the average lifespan of a typical gas furnace is around 15-30 years. As long as you have scheduled yearly furnace maintenance, your furnace should easily last over 15 years.

How much is a furnace cleaning?

The national average furnace cleaning cost ranges from $60 to $80, though prices can vary greatly based on where you live in the country and what your furnace maintenance includes. An HVAC company may have different rates for different levels of furnace maintenance.

How long does it take to replace a furnace blower motor?

Cost to Replace a Blower Motor
Header Low Cost $100 - $325 High Cost $600 - $1,000+
Speeds Single Multi or Variable
Manufacturer Universal Brand
DIY Yes or No No
Repair Time Under an hour 1-2 hours

How much does a flame sensor cost?

Depending on which furnace repair company you call, you can expect to pay anywhere from $350 to as much as $500 for a new flame sensor, plus the cost of the travel and diagnostic charge.

How does a draft inducer motor work?


A draft inducer is a fan that's located inside of your furnace near the heat exchanger. By turning on before your furnace ignites its burners, the draft inducer is able to clear out any combustion gases that might be lingering in the heat exchanger from the previous heating cycle.

What is an inducer blower motor?

The draft inducer blower assembly is essentially a small motor powered by electricity, a fan and an. electrical box that allows connections to a metal sleeve that surrounds the fan assembly. The draft inducer blower's purpose is to move air and gasses out of the furnace and up through the chimney.

What does a new furnace cost?

New Furnace Replacement Cost. The national average cost of a standard efficiency natural gas furnace ranges from $2,150 to $5,900 with most homeowners paying around $3,100. The price may vary based on brand, complexity of install, and the efficiency of the new unit.

What is the inducer on a furnace?

The inducer assembly is a small fan that pulls air through the furnace heat exchanger and sends it to the outside through a vent pipe. In furnaces with an afue of 90% or more, they are usually made of plastic. The inducer establishes a draft through the furnace and is sometimes referred to as a draft inducer.

Can you oil a draft inducer motor?

There are two lubrication points on most draft inducer blowers, although there are sealed motors that do not require lubrication. Lubricating a furnace draft inducer blower also includes the motor shaft where it enters the bearing collar of the blower wheel.

What is an induced draft motor?


A Furnace Draft Inducer motor is a single-phase motor that is designed to efficiently move air and gasses out of the furnace and up through the heating vent pipes and also maintains clean and safe combustion. A damaged furnace inducer motor can also cause failure to other parts of your overall heating system.

How does a furnace work?

A forced-air furnace heats your home through a heating cycle that looks like this: Natural gas or propane is ignited in the burner. The flames heat up a metal heat exchanger and exhaust out of the flue. The furnace's blower forces the heated air into the ductwork and distributes it throughout the home.

How long do furnace blower motors last?

Both types of motors are built to last up to 20 years with minimal maintenance required. The primary reasons that a motor might fail before its time are overheating and excess moisture.

What is draft in HVAC?

Within a fuel burning applaince, draft is the flow of combustion gases through the heat exchanger. It can be atmospheric, induced, or forced. Atmospheric draft occurs when heat naturally rises and carries combustion gases up the heat exchanger.

Is it OK to run HVAC fan continuously?

When you run the fan continuously, it causes the water to evaporate and puts it right back into your home. This means your home will not be effectively dehumidified, which makes it less comfortable. So, putting the fan in the “on” position compounds the error of having an oversized cooling system.

Is it OK to run furnace fan constantly?


Drawbacks to Running Your Furnace Fan Continuously
Furnaces with high-efficiency motors, however, should not increase your electric bill. In fact, running your furnace fan constantly may even save you money since having more even temperatures in your home may result in the heat or air conditioner running less.

How do I clean my furnace?

How to Clean a Gas Furnace
  1. Turn off power/gas to the furnace. Turn off power to the furnace at the breaker box.
  2. Clean furnace surfaces. Wipe exterior surfaces with a damp rag.
  3. Remove the blower.
  4. Carefully clean the blower.
  5. Clean the pilot or hot surface igniter.
  6. Clean the flame sensor.
  7. Inspect the drive belt.
  8. Lubricate (but not too much).

How do I clean my furnace blower?

Cleaning the Fan and Motor
There really isn't much to cleaning the fan in your furnace once it's out of the unit. Using a toothbrush or paint brush, you can clean between the fan blades, motor housing and squirrel cage. Your vacuum will be good to keep the dust down and suck up the clump of dust that gets left behind.