What is the yellow wire on a furnace blower motor?
According to the new motor White = L1 (neutral), Black = High speed, Blue = Medium speed, Red = Low speed. Check the diagram on the old motor, to figure out which wires are which. From what I can see, looks like on the old motor: Black = High speed, Yellow = Medium high, Orange = Medium Low, Red = Low speed.
How do you reset a furnace fan?
How to Find and Reset your Furnace Motor Blower
- Step 1: Turn off the power to the furnace.
- Step 2: Remove the blower compartment cover.
- Step 3: Make sure the blower is completely cooled off.
- Step 4: Locate the reset button.
- Step 5: Press the button in (assuming that this is your issue and that the button has popped).
How does a 3 speed fan work?
How does a 3-speed fan work? In a 3-speed motor, hot voltage is applied to the main winding at 3 different points. This is what the fan switch does. When voltage is applied to each point, the main winding receives current as the voltage from the black hot wire completes the circuit with a white neutral wire.
Does a capacitor increase the speed of a fan motor?
When you increase the capacitance, the fan motor’s voltage goes up, but the capacitor’s goes down. The fan’s speed goes up. To increase the fan speed, you need to increase theCapacitor value.
Do you need to know all the parts of a furnace?
While that may sometimes mean that you need a new furnace, it most often means that one of your furnace parts could benefit from a little maintenance. Understanding all of the various parts of a furnace can help you to make an informed decision about what is best for your home.
What is the sequencer on an electric furnace?
The Sequencer: On an electric furnace, a sequencer turns the heating elements on or off. It controls when different sets of coils are permitted to heat. The reason why it does not allow all of the coils to heat at once is because the power draw required would be too large for your electrical system to handle.
Where does the heat come from in a gas furnace?
In some cases, the blower motor capacity also helps to keep the blower motor running at a consistent speed. The burners are where gas and air are combined to generate flame, therefore becoming the heat source of your gas furnace. They heat up the air inside of the heat exchanger.
How does the draft inducer work in a gas furnace?
Before the gas in your furnace is allowed to burn, the draft inducer motor switches on. It creates a small vacuum, pushing the toxic fumes out of your home, through the vent pipe. A gas furnaces’ pressure switch is in place to ensure that the draft inducer motor is on and is pushing harmful gases out of the vent pipe.