Furnace Blower Motor Oil Ports

I couldn t tell by the picture.

Furnace blower motor oil ports.

Visually locate the oil ports on the motor and shaft. If you have a serviceable blower motor it has one or two oil ports. This video is part of the heating and cooling series of training videos made to accompany my. Unless the motor has oil ports at either end they are sealed bearings and can t be oiled.

Cleanout and observation ports as shown in figure 12 2 an oil furnace typically is provided with one or two cleanout ports to allow access to the heat exchanger for cleaning soot removal. Two or three drops will suffice. They should be clearly marked with labels. Apply two or three drops of 10 weight nondetergent motor oil not all purpose oil to each port.

An oil port is on both sides of the motor. Lubricate the oil ports by applying a few drops on them. Oiling the furnace blower motor. Lubricating a furnace draft inducer blower also includes the motor shaft where it enters the bearing collar of the blower wheel.

Below we illustrate three electric motors all happening to be found in heating furnace blower compartments. It is imperative to lubricate the furnace blower motor once in a year for smooth hassle free operation. Do not apply too much oil as over lubrication can lead to other complications. Locate them and lubricate the ports with the same quantity of oil.

Depending on the manufacturer there might be two or three oil ports. Going by past experience inducer motors rarely if ever have oil ports. There are two lubrication points on most draft inducer blowers although there are sealed motors that do not require lubrication. Oil ports will be obvious often capped with a hinged cap or a hole facing up marked oil on the steel body of the motor.

I show where the oilers are on the blower motor of the furnace. I m using 3 in one sae 20 motor oil for electric motors http amzn to 2k63xwl if your motor has little yellow sometimes black removable plugs you can o. Or send us some sharp photos of all sides of the motor and we ll comment further. They may have red or other colored plastic caps that cover them.

Blower shafts on the furnace blower motor could have additional oil ports. If the blower shaft has oil ports it too should be lubricated annually following the same procedure.