Central Air Conditioner Blower Fan Not Working

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.

Central air conditioner blower fan not working.

Central air conditioners can work for years without problems if properly maintained and serviced annually. This is another part that must be repaired by a professional hvac contractor. The unit stops working. Fans in the central a c both pull air out of the room to be conditioned and have humidity removed and also push chilled air through the vents throughout the house.

The air filter needs to be changed. It takes much more energy to get the outdoor fan going than it does to keep it running. But before you phone see if the problem is caused by something else. Your system s air filter traps dust dirt and other airborne pollutants to keep indoor air and internal cooling system components cleaner.

An air conditioner contactor is an electrical switch that controls the compressor and condenser fan motor. Most thermostats control both central air and central heat. Another common and easily remedied situation that sometimes results in a central air conditioner fan not working is a dirty clogged air filter. If the thermostat is defective it may prevent the fan from working.

Refrigerant leaks resulting in your air conditioning freezing up. If they aren t working properly call a trained technician. If it s cloudy and relatively cool outside but feeling stuffy in your home running the fan for an hour or so can certainly help. The blower is going bad or out of balance.

It is common for the contactor to go bad over time which restricts the outside fan from working properly. Capacitors send an electrical jolt to start a motor a start capacitor or to keep one running a run capacitor in an air conditioning system capacitors work with three different motors. The compressor the indoor blower fan and outdoor fan. If you don t want to turn the fan off and on all of the time there are some new technologies that will allow you to program the blower fan to run for 10 to 15 minutes each hour.

To determine if the thermostat is defective set the air conditioner to cooling and then use a multimeter to test the thermostat for continuity. While each component in a central air conditioner is critical quite simply the unit will not work if the fan is not running. When the air temperature rises above a set point the thermostat activates a switch to provide power to the fan and compressor.