Nordyne Furnace Troubleshooting. A Nordyne gas or electric furnace that’s not working can get mighty cold mighty fast.
The most common problem is that the ignitor or flame sensor might need changing, so try unplugging the furnace for a short period.
Then plug it back in to see if that solves the issue. If not, don’t worry because we’ve got good news. It could be something as minor as needing to change the draft inducer motor, which is easy to do even for novice do-it-yourselfers.
Nordyne Furnace Troubleshooting
Our purpose here is to explain how to troubleshoot some problems with Nordyne furnaces.
Nordyne Furnace Makes Noise
Blower motors wear out their bearings over time, which causes the motor to become noisy.
If your blower motor does not seem adequately lubricated already (if its blowers are excessively loud) put some oil on your hands and wipe it along the shaft of the gearbox.
Overtime (anywhere from 5 minutes to a few days) if this doesn’t fix things like problems, or if your internal blower cannot be serviced yourself then consider replacing it altogether with a new one or consult a professional who can offer you a better idea of what’s going on with it.
The blower wheel circulates air throughout the house from the furnace. An adjustable set screw secures the blower wheel to the motor shaft of the blower.
A loose set screw will result in the blower wheel wobbling on the motor shaft, causing a whirring sound. Check to see if you can tighten it by hand. If you can’t tighten it enough by hand, use pliers to grip the exposed shank of the set screw and make an additional 1/4 turn with these pliers.
Nordyne Furnace Doesn’t Heat
The wall thermostat is connected to the furnace’s power supply through electrical contacts. In case of contact failure, the furnace will not turn on. A multimeter can be used to check the thermostat’s continuity; if it doesn’t, it needs to be replaced.
Flame sensors check that there is a flame on the burner, and determine whether or not one is present. If your dirty flame sensor fails to detect a flame, it will result in the malfunctioning of your furnace.
As an outcome of this malfunction, you will not be able to benefit from heating. Therefore it’s best to clean your flame with fine sandpaper and have it checked by a repair person if cleaning doesn’t work.
Nordyne Furnace Blower Always Runs
The wall thermostat has electrical contacts that control the furnace’s power supply. If the blower motor’s contact sticks closed, it will supply continuous voltage to the blower motor, causing it to run constantly.
To determine if the thermostat is defective, use a multimeter to test it for continuity. If the thermostat shows continuity between (R) and (G) when set to off this means that there is a problem with it and you may need to replace your thermostat as soon as possible.
The control board regulates the voltage to the various components of the furnace through relays. This will result in the blower motor running continuously if the relay that controls it malfunctions while it is closed. Replace the control board if it is faulty.
Nordyne Furnace Blower Won’t Run
If the capacitor is failing, the motor may be noisy, overheat or simply stop running completely and this can often lead to it catching fire.
The easiest way for you to tell if your aforementioned electric parts are failing is by inspecting them carefully! If a faulty capacitor is bulging or leaking then it should be replaced immediately; the same goes for a capacitor that reaches temperatures above normal operating levels.
The blower motor blows air through the return vent, past the heat exchanger then into the home’s venting. At first, make sure that power is getting to the motor and if not, get it there.
If power is getting to the blower motor but it isn’t running, you can either replace it or look at why it isn’t running such as perhaps a fan being blocked or not spinning freely.
Nordyne Furnace Begins And Stops
Proper airflow is required for the furnace. The ductwork carries the air from one part of the house to the other. If there is a fire in the furnace, the room will fill with smoke and it will be impossible to breathe. By checking if you have enough space in your home to prevent this situation, you can save lives!
The flame sensor detects whether a source of heat has been lit. It measures the temperature of a flame and indicates its presence on the control board.
If the furnace is on and a flame sensor does not recognize it, this means that something may be wrong with its wiring or possibly, the problem is due to a dirty sensor.
In order to combat this type of issue, you can clean it thoroughly with an abrasive pad. Before taking further precautionary measures, make sure to check if it senses correctly by lighting a match or a candle.
If your furnace still doesn’t work even after having cleaned your furnace’s sensor, then you might need to replace it.
Nordyne Furnace Troubleshooting