Central Air Blower Fan Won T Turn On

If the air conditioner still won t work make the call.

Central air blower fan won t turn on.

Most thermostats control both central air and central heat. Other snafus such as a shorted thermostat wire can also cause the a c or warm air furnace fan to run continuously. But here are some suggestions to start troubleshooting the problem of a furnace blower fan that does not start. What causes a thermostat to malfunction.

Fan has trouble starting in some cases you can give the fan a kick start by pushing it with a stick and if this occurs there is likely an issue with the capacitor. This noise is caused by a part called a relay which opens and closes to turn your ac on and off. But if you hear a loud clicking noise andthe ac won t turn on it could mean the thermostat is malfunctioning. If your system turns on but the fan never does the problem is something you ll need to have a pro take a look at.

I would start by confirming that the blower fan will operate. Check the fuses in the disconnect box located outside near the condenser to make sure there s power. Your system probably has a manual fan on switch on. If your thermostat is secured correctly to the wall this clicking sound shouldn t be very loud.

Make sure the switch on the side of the thermostat is set to cool instead of heat that will ensure that the proper mechanical system. Fan will not come on in the on position or your fan will not come on when you turn the thermostat down in the air conditioning mode. The fan limit switch may include a switch that manually keeps the fan running. If the condenser coils are coated with dust or debris use a garden hose to wash them off.

Replace or clean the furnace filter. At the furnace or air conditioner air handler or blower unit. If you turn on your air conditioning system and find that there is no air blowing out of the ac unit or no buzz of the blower fan motor then it is possible the ac blower motor has an issue. Those problems are explained at thermostat won t turn off.

This is one of the most common and easy ways to know if your air conditioner blower motor is broken or not. This can be caused by a number of things from bad capacitors and belts to a bad blower motor in general. I would continue diagnosis by watching the behavior of.