How do I lubricate my furnace blower bearings?
- Prepare. Using the screwdriver gently remove the furnace blower's metal panel which hides the blower motor and bearings.
- Remove the Old Bearings. Now, you need to loosen about four mounting bolts which keep the blower motor along with its bearings.
- Replace the Furnace Blower Bearings.
Full Answer
How to lubricate a furnace blower motor?
The furnace blower motor comes equipped with fans. If these fans become dirty or lack lubrication, they start Most furnace blower motors come equipped with a self-oiling system, but if yours does not have this then you will have to manually lubricate it. Locate the oil ports in the motor.
What kind of oil do you put in a furnace blower?
Buy non-detergent oil that is exclusively made for the furnace blower motor. Do not use an all-purpose oil, as it is not apt for this procedure. Lubricate the oil ports by applying a few drops on them.
What are the lubrication points on a furnace draft inducer blower?
There are two lubrication points on most draft inducer blowers, although there are sealed motors that do not require lubrication. If you have a serviceable blower motor, it has one or two oil ports. Lubricating a furnace draft inducer blower also includes the motor shaft where it enters the bearing collar of the blower wheel.
How often should I lubricate the blower shaft?
If the blower shaft has oil ports, it, too, should be lubricated annually, following the same procedure. You'll probably have to remove an access plate to get at the ports.
How do you lubricate a blower motor on a furnace?
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. You'll probably have to remove an access plate to get at the ports.
How do you lubricate a blower motor bearing?
3:065:41How to oil the HVAC fan motor - YouTubeYouTubeStart of suggested clipEnd of suggested clipIf it moves stiff you can oil it and it will probably maybe start working again don't count on itMoreIf it moves stiff you can oil it and it will probably maybe start working again don't count on it and the bearings are damaged.
How do you fix a squeaky blower motor on a furnace?
The project requires you to carefully remove and oil the blower motor, thus reducing the noise. For the belt-driven furnace motors, the same squealing sound might arise if the belt is loose. This means that you'll need to adjust the blower belt to reduce the noise and ensure smooth operation.
Why is my furnace blower so loud?
Your blower motor forces the warm air out of your furnace and through the air ducts in your home. The blower motor needs routine lubrication, and often a specific kind of lubrication to upkeep performance and function over time. Otherwise, the fan might seize up and cause a loud noise (and an even louder repair bill).
What oil do you use for bearings?
In general, both mineral oils and synthetic oils can be used for ball bearing lubrication. Synthetic oils are mainly used for high temperature fluctuations in the working process.
Can you use WD40 on furnace motor?
Never use WD-40! Lubricate the bushings on both sides of the motor. Mike W. Take it out and lube it, and as was said, emphatically not with WD40.
How do I make my furnace blower quieter?
How to Quiet a Noisy Furnace Blower: 9 Easy WaysAdjust Furnace Fan Speed.Clean Furnace Blower Fan.Replace Furnace Blower Bearings.Check Motor Mount for Loose Connections.Tighten the Set Screw.Change The Belt Drive.Try Sound Insulation Solutions.Replace The Motor or Fan Blade.More items...
Why is my heater blower squealing?
Make Sure Your Furnace Is Clean Keep your furnace filters clean. Sometimes a high-pitched whistling or squealing can be due to poor airflow. Poor or low airflow usually comes from your blower struggling to push out air. One of the reasons that your blower could be struggling includes a dirty air filter.
Why is my furnace making a squeaky noise?
A high-pitched squealing noise could mean a number of things, but generally, it is due to a part that needs to be replaced or fixed. Worn out parts such as a frayed blower belt or a malfunctioning blower motor can create these noises and can cause issues for your furnace that will be more major repairs.
What to do if blower has grease cups?
If the blower has grease cups instead of oil ports, remove the screw caps that cover the cups and fill the cups with bearing lubricant , which is available at automotive and hardware stores. When you lube the motor, you should also check the belts. Find out how to replace worn belts on the next page.
How to keep a motor running cool?
To keep the motor running cool, make sure it's clean. Most motors are permanently lubricated and sealed by the manufacturer and, therefore, require no further attention. Some motors, however, have covered oil ports above the bearings near the motor shaft. If the motor has oil ports, it should be lubricated annually.
