Frigidaire ac fan not working. Checking a blower motor is the first thing to do when troubleshooting a fan unit. First, check for any restrictions within the fan’s blades. Second, look into any power systems that may be distracted.
If power is available, but there is no activity from the fan motor itself; it could mean that there must be a dead capacitor somewhere in our system which stands as the most common reason why a blower motor would fail to work properly.
It’s important to note that capacitors are considered small and cylinder-like components designed to send electrical signals in order to power up the rest of our blower system as well as electronics involved with how cool air is circulated around our house or workspace.
Frigidaire ac fan not working
If your air conditioner is running but no cool air is coming out and the fan isn’t spinning, you should call a professional for a diagnosis.
You may have a problem with your air conditioner fan for several reasons. Below are some of the most common causes and how to fix them.
Defective Dual Shaft Fan Motor
The dual-shaft motor might be defective. It has two sets of fan blades: one on either side of the motor. On one side, the fan blade draws in outside air over the condensing coil to dissipate the heat.
On the other side, the fan blade directs the air over the evaporator coil. The dual-shaft motor has bearings that can loosen or bind over time, causing it not to work correctly and at times block out various electrical parts so they won’t work effectively in an AC unit.
If a dual-shaft motor is defective due to loose or binding bearings, you’ll want to pay close attention after wiggling a loose shaft; if it’s hard to turn and typically makes a humming noise when rotating, then it’s probably time for a replacement.
Replace the Relay board
The relay board is like the pump – it provides electricity to everything else. If the relay board isn’t working, none of the other components can.
A relay board can fail due to bad contacts or because it’s overheating. Before replacing the relay board, make sure you’ve checked all of the fuses and other parts that can cause a short circuit, such as the capacitor and cooling fan. If everything checks out, replace the relay board.
Faulty Fan Motor
Try to manually spin the blade. If the blade doesn’t spin freely, this could be a sign that the motor bearings are going bad. If it’s the motor bearings, it’s a good idea to go ahead and replace them because they probably won’t get better.
If the fan blade does spin freely and you see power coming into the motor, but it doesn’t work at all, then this points to problems with the motor itself and may need replacing as well.
Thermostat faults
A thermostat is a sensor that monitors the temperature of the air in your home. When the air temperature rises above a certain level and follows your instructions, it sometimes sends instructions to different systems in your home like for example a boiler or an air conditioner.
For example, if you turn a series of electric potential switches into live while testing something on/in a piece of equipment/home appliance, then that piece of equipment/home appliance would emit heat/light, and generally speaking there would be no sound coming from the device being tested.
Replace the thermostat if the thermostat does not have continuity while the air conditioner is on cooling.
Replace the main control board
The Main Board is essentially the brain of the Air Conditioner and gives power to all of its components. If there is a problem with the mainboard, it has the potential to stop providing voltage to some components.
One important thing about these boards is that sometimes they get misdiagnosed! So make sure you check more commonly defective parts before replacing the mainboard if something were ever to happen.
If you are certain that all of the other components are working properly, replace the mainboard.
Problem with Blower Motor
The blower motor may be worn out or irreparably damaged. First, test the fan blades. If the fan blades do not spin freely, replace the motor. Second, make sure power is reaching the motor.
If power is reaching the motor but it still does not run, replace it as well as if is damaged there’s nothing you can do to repair it.
Burn-out capacitor
The capacitor is attached to the compressor by electrical leads. If the capacitor burns out, the fan won’t run. To troubleshoot whether or not your capacitor is burned out.
You need to test it with a multimeter for continuity. If you find that when checking for continuity using your multimeter that your cap does not pass the test then go ahead and replace it.
The issue with Selector Switch
A selector switch directs voltage to the fan. To determine if the selector switch is bad, you can try shorting to ground each of the wires at the fan motor and then turn on the air conditioner’s power and watch to see if it comes on.
If it does, this should indicate that your selector switch is bad but before replacing it you may need to check for arcing or smoke coming from your selector switch.
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