Furnace Blower Motor Oil Ports

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.

Furnace blower motor oil ports.

Visually locate the oil ports on the motor and shaft. I show where the oilers are on the blower motor of the furnace. 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. They should be clearly marked with labels.

An oil port is on both sides of the motor. The observation port allows monitoring of the inside of the heat exchanger during the operation of the furnace. I couldn t tell by the picture. This video is part of the heating and cooling series of training videos made to accompany my.

If the blower shaft has oil ports it too should be lubricated annually following the same procedure. 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. Lubricate the oil ports by applying a few drops on them.

Lubricating a furnace draft inducer blower also includes the motor shaft where it enters the bearing collar of the blower wheel. It is imperative to lubricate the furnace blower motor once in a year for smooth hassle free operation. They may have red or other colored plastic caps that cover them. Two or three drops will suffice.

Below we illustrate three electric motors all happening to be found in heating furnace blower compartments. Do not apply too much oil as over lubrication can lead to other complications. Depending on the manufacturer there might be two or three oil ports. Unless the motor has oil ports at either end they are sealed bearings and can t be oiled.

If you have a serviceable blower motor it has one or two oil ports. If the motor has oil ports it should be lubricated annually. Blower shafts on the furnace blower motor could have additional oil ports. Oiling the furnace blower motor.

Locate them and lubricate the ports with the same quantity of oil. 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.