Asked by: Olaf Beyschwanghome and garden indoor environmental quality
Why is my fan not turning on my AC unit?
Last Updated: 24th April, 2020
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Hereof, why is my AC condenser fan not working?
A slow condenser fan (or air handler unit fan) could be caused by a bad start-run capacitor. Unfortunately this condition could indicate a burned-out A/C or heat pump compressor motor. This can leave the fan motor running. A bad fan motor can also cause the fan to turn but only abnormally slowly.
Subsequently, question is, what happens if condenser fan doesn't work? When the condenser overheats, all of the components of the AC system will begin to overheat until they eventually get hot enough to burn and emit an odor. A failed fan will not only fail to produce cold air, but can even result in damage to the AC system due to overheating.
Besides, is the fan supposed to be on when the AC is on?
Keeping your fan on AUTO is the most energy-efficient option. The fan only runs when the system is on and not continuously. There is better dehumidification in your home during the summer months. When your fan is set to AUTO, moisture from cold cooling coils can drip and be drained outside.
Will AC fan run if capacitor is bad?
Symptoms Of a Bad HVAC Capacitor If you take a stick and spin the fan blade and the condenser fan starts to run, the run capacitor has likely failed. Even though the fan is operating, we recommend that the AC unit should be shut off. Without the run capacitor in the circuit, the motor will pull excess amperage.