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A draft inducer (or vent blower) is the most common problem on a gas furnace or boiler to cause a noticeable noise. The small motor mounted within the housing can begin to make noise when there is buildup on the wheel (such as sulfur or creosote) or when the motor is close to the end of its usable life.
What does a bad inducer motor sound like?
A failing inducer motor may create a noise shortly after a heating cycle begins. This could be a tapping noise, or a humming or whirring sound. Take the furnace doors off and reach in on the blower motor side (usually to the right), touch the blower motor and check if it is hot.
How do I know if my furnace inducer motor is bad?
Tapping noises are one of the most common signs of a bad inducer motor. These noises may be the result of dirt or soot collecting around the fan shaft. They might also come from the bearing in the motor clicking together. Vibrating noises are another sign of a bad inducer motor.
Can you lubricate 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.
How much does it cost to replace a draft inducer motor?
Your furnace’s draft inducer motor removes toxic gases like carbon monoxide from the heat exchanger. The average cost to repair or replace a draft inducer motor is $200–$1,500.
How long do furnace inducer Motors last?
Furnace inducer motors can have a life expectancy of 12-15 years. A replacement furnace inducer motor can cost around $800.
What causes inducer motor failure?
Most inducer motors failures are simply attributed to the older age of the furnace. In most cases, the internal bearings wear out and since the unit is a sealed unit, there is no way to repair the original motor. Instead the unit is simply replaced with a new one.
What does inducer motor in furnace do?
The inducer motor turns on and draws combustion air into the furnace. This helps to make sure the gas is burning efficiently. Next, an ignitor will either glow or spark to ignite the gas that starts flowing. This gas ignites into flames while the hot air and obnoxious gases are drawn into the heat exchanger.
Why does my electric furnace sound like a jet engine?
Furnace Sounds Like a Jet Engine If your furnace sounds like an airplane or jet engine taking off, it’s usually a gas issue. Gas could be leaking from a line or valve. Or, if you hear a click before the swooshing sound, you may have a broken heat exchanger that is leaking gas. Gas leaks can become emergencies.
How do I make my furnace blower quieter?
If you are wondering how to quiet a noisy furnace blower, you should try adding sound insulation to the system. You can install a melamine foam next to the blower intake. Try securing the foam using steel wire so that the furnace blower does not suck it in.
How often should I oil my furnace blower motor?
If the motor has oil ports, it should be lubricated annually. Apply two or three drops of 10-weight nondetergent motor oil (not all-purpose oil) to each port. Do not overlubricate. If the blower shaft has oil ports, it, too, should be lubricated annually, following the same procedure.
How long should a draft inducer motor last?
A: On average, you can expect a well-built inducer motor to last around 20 years.
How much does a furnace inducer cost?
The average furnace inducer motor cost is around $245, when the part is under warranty and you pay only the labor to have it installed. The replacement cost is $465 when the warranty has expired and you pay for the furnace inducer motor.
How much does it cost to replace a inducer motor on a Carrier furnace?
The average cost of a Carrier inducer motor replacement is between $800-$1800.
How much does it cost to replace furnace motor?
How much does a furnace motor replacement cost? 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+.
Why is my furnace humming?
Noise #4: Humming or buzzing But if you hear a loud humming or buzzing sound coming from your furnace, it usually means your furnace has an electrical problem. The most common electrical issues that cause a humming or buzzing sound include: A failing blower motor capacitor. An aging or unlubricated blower motor.
Are inducer motors loud?
A draft inducer (or vent blower) is the most common problem on a gas furnace or boiler to cause a noticeable noise. The small motor mounted within the housing can begin to make noise when there is buildup on the wheel (such as sulfur or creosote) or when the motor is close to the end of its usable life.
Does an inducer motor have a capacitor?
The capacitor is what helps supply power to the motor when it’s first starting up. The result is not enough juice makes it to the inducer motor, and it most likely won’t start up. Or, if it does, it’s going to be weak or start and stop repeatedly every 30 seconds or so.
Should my inducer fan runs constantly?
If your inducer fan motor keeps on running all the time, it’s most likely due to a tripped safety such as the high limit switch. The first thing you need to do is turn off the power to the furnace so the inducer fan stops running.
Can I use wd40 on my furnace motor?
Never. WD-40 can be used to clean the gunk out of a fan’s bearings, but it MUST be removed and replaced with a proper lubricant.
