Because the inducer motor helps your furnace run safely, the furnace will usually shut off if the motor won’t turn on. However, a bad inducer motor isn’t the only reason a furnace would shut off. A blocked gas vent flue or faulty pressure switch can have the same effect.
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 do you replace a carrier draft inducer?
Breaker. Inside the unit unplug the power going to the flow inducer motor remove the four screws two on the top two on the bottom using a quarter inch hex driver or flat screwdriver.
How long does it take to replace an inducer motor on a furnace?
30 to 60 minutes
Replacing a furnace inducer motor takes 30 to 60 minutes, depending on inspection time, accessibility, and wiring requirements.
How do you replace a furnace inducer motor?
Now loosen the clamp and slide the exhaust pipe up disconnect grounding wire and the draft inducer motor wires unscrew the mounting screws. Next remove the inducer motor.
How do I know if my draft inducer motor is bad?
One of the first indications of a bad draft inducer motor is likely to be the sound it makes. 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.
Can I replace an inducer motor myself?
The first thing to consider before deciding whether to call a professional or attempt a repair yourself is the warranty. Many homeowners don’t realize that they only have to pay labor to have the draft inducer motor installed if the part is under warranty.
What causes an inducer motor to fail?
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.
Can you lubricate furnace inducer motor?
Before starting your furnace for the season, it is a good idea to clean and lubricate inside the furnace. One way to help your furnace last for years is to lubricate the blower. There are two lubrication points on most draft inducer blowers, although there are sealed motors that do not require lubrication.
How long does an inducer motor last?
12-15 years
Furnace inducer motors can have a life expectancy of 12-15 years. A replacement furnace inducer motor can cost around $800.
Why is my inducer motor noise?
Number one is when you hear a water sloshing noise coming from the inducer motor housing. So that could be one of two things either the furnace is not pitched right.
What is the best lubricant for an electric motor?
A NLGI 2 grade grease is the most commonly used in electric motor applications. ASTM D 3336 oxidation life. require a grease with an EP additive. Dropping Point: The dropping point gives an indication of the temperature at which the grease will melt or the oil will separate from the thickener.
Can you spray WD-40 on an electric motor?
Yes, WD-40 is safe to use on electronics. It is used frequently to dry out auto ignition systems as it it non-conductive, displaces water, and lubricates the parts without getting sticky. I also use it to clean up and dry out computers and power supplies.
Can you use silicone spray on electric motors?
DO NOT USE SILICONE SPRAY ON ELECTRICAL CONNECTIONS, SWITCHES, RELAYS, ETC. There have been numerous reports that silicone spray can cause contact problems in switches, noted in multiple posts regarding automotive problems.
How often should an electric motor be greased?
When the operating temperature is between 80°C – 100°C (176°F – 212°F), oil should be replaced at least every three months. For critical equipment, it is advisable that lubricating oil be analyzed at least every three months to determine when oil replacement is necessary.
What happens if you over grease an electric motor?
Excess grease can also cause the motor to overheat, increasing the risk of lubrication starvation and even bearing failure. Once all excess grease has been expelled, you can go ahead and replace the relief plug. Clean any grease away from the relief port, and you’ve finished greasing your electric motor.
Can you over grease an electric motor?
Don’t over lubricate your bearings
Over lubrication can cause the grease or oil to get into the windings. This will cause the insulation to deteriorate around the winding, resulting in arcing and shorting inside the motor to the case. Over lubricaiton will also cause excessive heat and wear on the rotor and stator.
Can you over grease a motor bearing?
Too much grease volume (overgreasing) in a bearing cavity will cause the rotating bearing elements to begin churning the grease, pushing it out of the way, resulting in energy loss and rising temperatures.
How hot do you heat a bearing for installation?
Hot mounting
Normally a bearing temperature of 80 to 90 °C (144 to 162 °F) above that of the shaft is sufficient for mounting. Never heat a bearing to a temperature greater than 125 °C (257 °F), because the material may change metallurgically and produce alterations in diameter or hardness.
How much grease should you put in a bearing?
Typical relubrication amounts are 1/3 to 1/2 of the original fill quantity. The proper fill quantity of a grease lubricated bearing is often specified as a percentage of the bearing’s free space. It is, therefore, important that the bearing’s free space is accurately determined.
How often do bearings need to be greased?
Using the chart and the formula, the bearing only needs 8 grams of grease every 10,000 hours. If your grease gun delivers around 1.35 grams per stroke, that means the bearing needs 6 strokes every 13 months; you could average it out to a stroke every 8 weeks or so.
How do you know if bearing grease is bad?
This is some old Valvoline synthetic wheel bearing grease I had sitting around see the oil separating one bad why did it go bad I'm not probably time heat some new stuff you see oil is not separating
Can you overpack a bearing?
If too much grease is “packed” into the bearing and the cavity, this grease will be pushed out when the wheel spins, and could easily ruin the brake shoes. In addition, the wheel bearing could actually overheat. Repacking wheel bearings is an easy job, and should be part of the routine maintenance of the vehicle.
