How do I lubricate my furnace blower bearings?

Lubricate Bearings if Necessary Some older furnaces have two motor bearings and two blower shaft bearings that require annual oiling. Clean around the oil caps and remove the caps. Apply two to three drops of lightweight machine oil and replace the caps. Don’t over-lubricate!

How do I stop my furnace from banging?

To correct this cause of furnace banging noises, change the air filter. Make sure to replace filters on a regular schedule, and check them monthly over the winter season. Filters may fill up at a faster rate due to increased heating system use, requiring more frequent changes.

How do I make my blower fan 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.

Why is my return air vent so loud?

Since the air return sucks air, they are prone to getting clogged, especially if your home is particularly dusty. When vents or ducts are clogged with dust and debris, the result is reduced airflow which can cause annoying noises. Believe it or not, where the vent is placed can really have an impact on how noisy it is.

Can you use wd40 on a fan?

So your first inclination might be to just replace the noisy fan. But don’t be tempted to use WD-40 to lubricate a computer fan. WD-40 is formulated as a cleaner/degreaser to be used for loosening stuck parts, preventing corrosion, and displacing water—all types of problems you won’t typically find in computer fans.

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 do you reduce air blower noise?

High static pressure makes airflow more audible

1. Adjust the fan speed. Your blower or furnace fan should be set to deliver the proper airflow per ton.
2. Add ductwork.
3. Add a bypass duct.
4. Add or expand grilles and registers.
5. Replace existing registers and grilles with high velocity models.

What do you need to know about a combustion blower?

About the Combustion Air Blower. Combustion blowers are used in various industries for heating and drying purposes. They are also integral to a boiler’s burner system since they ensure sufficient airflow to the burners. The amount of airflow is regulated by variable frequency drives and/or inlet dampers.

What happens when you remove the nozzle line on a gas burner?

When the nozzle line is removed for service, air replaces the oil that is drained from the nozzle line. This air mass will be broken into smaller bubbles and purged from the system by cycling the burner numerous times.

What should distance be between blower wheel and motor face?

BLOWER WHEELS: When installing the blower wheel onto the AFG motor shaft, make sure it is positioned so that the distance between blower wheel backplate and motor face is 3/64″ ± 1/64″. A larger distance than what is specified may also contribute to a loss of static pressure.