Furnace Blower Motor Oil Ports

Apply two or three drops of 10 weight nondetergent motor oil not all purpose oil to each port.

Furnace blower motor oil ports.

Locate them and lubricate the ports with the same quantity of oil. There are two lubrication points on most draft inducer blowers although there are sealed motors that do not require lubrication. Or send us some sharp photos of all sides of the motor and we ll comment further. 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. Visually locate the oil ports on the motor and shaft. They may have red or other colored plastic caps that cover them. Step 2 inspect the blower motor for the oil ports which are located directly on the side and are sticking upwards.

The observation port allows monitoring of the inside of the heat exchanger during the operation of the furnace. 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. If the motor has oil ports it should be lubricated annually.

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. Two or three drops will suffice. I show where the oilers are on the blower motor of the furnace. This video is part of the heating and cooling series of training videos made to accompany my.

Going by past experience inducer motors rarely if ever have oil ports. Lubricate the oil ports by applying a few drops on them. They should be clearly marked with labels. If you have a serviceable blower motor it has one or two oil ports.

Depending on the manufacturer there might be two or three oil ports. I couldn t tell by the picture. Blower shafts on the furnace blower motor could have additional oil ports. 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. If the blower shaft has oil ports it too should be lubricated annually following the same procedure.