Furnace inducer motor troubleshooting. An inducer motor is a part of an appliance that uses a heating cycle to create motion. You can tell if the inducer has stopped working if immediate movement does not result from the heating cycle’s initiation and you choose to hear or feel for it.
If heating produces some sort of recognizable sound but not the instant harmonious movement, it is likely that the inducer is faulty unless there are other factors contributing to the kink in your system.
Possible causes beyond faulty motors might be obstructions from foreign objects such as chemicals in an industrial setting, or blockage due to biological or larger builds up like dust in a household environment for example.
Furnace inducer motor troubleshooting
Most inducer motor failures can be attributed to the original equipment being old and worn out.
The bearings are the primary components of a fan motor, and when they wear out over time because it’s sealed, there is no way to repair the individual unit. A new motor must therefore be installed instead.
If an inducer motor is damaged and stops working, you may notice that there’s no heat coming from the furnace. Usually, when this happens.
It’s difficult to detect any other early warning signs before you’re freezing in your own home, but occasionally, there are some early warnings that may be helpful to know about.
If you hear a loud sizzling noise coming from the furnace, it could mean that your gel-coated wiring insulation has come loose and touched the flame of the furnace or hot parts of a gas furnace.
Alternatively, if you make an effort to turn on your AC or heat but nothing happens, then this could indicate there’s a problem with your thermostat blower motor, which may have shorted out internally because it has been damaged itself (or not clean enough internally) so more investigation is needed if such as sound occurs.
If your furnace is out of commission, you might have an issue with your electrical wiring. The problem could be in the inducer motor, or it might be in a thermostat that regulates the motor, or it could be both.
If these components are on point, then you should look into the wiring of either the fan or the relay switch on the control board or damage to a transformer before your inducer can start.
When your furnace is starting up and shutting down repeatedly, it may not be getting enough gas when the device goes out repeatedly.
You’ll hear a hissing sound (indicating that the ignitor is damaged or something else exists in the relay board).
It has an automatic shutoff valve to avoid exposing your family and yourself to any gas fumes before it takes action to protect everyone. You can try restarting the device 3 times before you have to give up on it.
The replacement of furnace inducer motors
The device at the heart of your furnace that pulls air over the heat source and blows it out through vents is called the inducer motor.
Most furnaces feature an inducer made of metal, though under some circumstances, a furnace may have one made of plastic. If your furnace’s inducer goes, you won’t be able to use your heating system and will end up with a lot of cold days until you replace it.
Before replacing your inducer, you will want to verify that there’s nothing preventing the airflow in the ductwork and vents from reaching the furnace blower.
The easiest way to do this is by disconnecting and then clearing or tightening down all of your connecting hoses. It’s also a good idea to vacuum out any leaves or debris that may have fallen in between your condenser and its available air outlet.
Feel the inducer motor when trying to start the unit after several attempts. If it remains cool, then it could be an issue with wiring or one of your peripherals attached to the motor itself.
Furnace inducer motor troubleshooting