How do I increase the speed of my central air fan?
How to Change Air Handler Fan Speed
- Locate the air handler electrical disconnect box and disconnect the power.
- Using a nut driver, unscrew the air handler cover.
- Locate the fan relay electrical terminal and remove the current fan speed wire (normally “high”) from it.
Why is my AC fan speed slow?
A slow-moving air conditioner fan can be due to your chosen settings or problems with components, including the bearings, run capacitor and belt. Debris can also get in the outside unit and slow down the fan.
Can you adjust the fan speed on a furnace?
Once you cut the power, you can remove the cover of your furnace to get access to the control board. Adjusting the pulley on the blower driver motor lets you increase or decrease the blower speed. Turn the pulley one rotation clockwise on the shaft. If you want even more speed, do two rotations.
Do fans lower humidity?
When it is warm, and you are looking for an effective yet inexpensive way to reduce humidity, ceiling fans are a straightforward solution. When you turn on a ceiling fan, the breeze evaporates excess moisture, which makes you feel cooler.
How do I increase my blower speed?
You can increase or decrease the blower speed by slightly adjusting the pulley on the blower drive motor. To increase blower speed, slightly loosen the setscrew that holds the pulley to the driveshaft. Move or turn the pulley clockwise on the shaft one turn, then tighten setscrew.
How does fan speed affect humidity?
There is a price to pay for humidity control. When we lower the blower speed to remove more moisture, we also lower the system efficiency. If the blower remains at the lower speed, then the efficiency is lowered under all conditions, even when humidity removal is not needed. This brings us to humidity controls.
What happens if you run your air conditioner fan too fast?
Watch out: running the blower speed too fast during air conditioning may result in inadequate dehumidification, while running the fan at too-slow a speed may result in ice blockage on the cooling coil. The blower fan motor in most air conditioners has three speed settings – low, medium and high.
When do you need a higher fan speed?
Higher air speeds are needed during the cooling season than during the heating season. In general, higher air handler unit (AHU) speeds when running in cooling mode will give quicker cool-down of the occupied space and are suitable during daylight hours when the cooling load will be highest.
Is it easy to adjust the speed of a Furnace Fan?
If you know what you are doing, it is very simple to adjust the speed of your furnace fan. There are only a few steps required for most units and having the control will allow you to get your unit to give you the service you need. Check out furnace fans on Amazon.
Is the low speed fan connected to the high speed fan?
In the example included to the right, we can see cooling is connected to high speed, the heat is connected to medium speed, and the low speed is not being used (it’s just parked). From our previous example, let’s pretend we’re looking at a 60 kBTU furnace with a 2.5 ton AC attached to it, and we’re in Chicago.