The most common reason that your Air Conditioner fan won’t turn off is because a stuck relay keeping the circuit closed. If it’s not the relay, your thermostat likely has a shorted cable or needs to be replaced.
Why does my air handler fan keep running?
AC Unit Is Too Small Or Unable To Match Settings
A too-small HVAC system will often run to keep up with the thermostat setting, leading the fan and blower to run consistently. Additionally, if your area is facing extreme temperatures, your HVAC unit may not reach the desired temperature.
Why is my air handler not turning off?
Common causes for fans not turning off when they should include faulty thermostats, bad wiring, and stuck relays. These problems are not easy DIY repairs and should be left to an HVAC professional.
Why does my blower motor not shut off?
Quote from the video:
Quote from Youtube video: This is craig migliaccio from aec cyberstack. And today what we're going over is why a furnace blower motor continues to run and blow cold air all through the building. So even when the thermostat is
Why is my AC outside unit not turning off?
Stuck contactor in outdoor AC unit (most common)
Over time, the contacts can become pitted and worn. They can even weld shut so the outdoor unit can’t turn off. Just like spark plugs in your car, the contactor unit should be replaced every few years as part of your AC system’s maintenance.
How do I turn off my air handler?
Quote from the video:
Quote from Youtube video: The power switch will look like a regular light switch and once it is located you should switch it to the off position.
Why is my air conditioner outside fan keep running?
However, in some cases, the fan will keep on running even after the cooling system has turned off. This is usually the case if your thermostat is at the “on” setting. The fan will keep on running to ensure perfect air circulation in your room. To turn it off, simply change your thermostat setting to “auto.”
Why is my outside unit constantly running?
One of the most common reasons an outside AC unit runs constantly is due to limited airflow that prevents a house from cooling. How long should air conditioner run to cool house? Typically, your air conditioner should start decreasing the temperature within 10 minutes.
