Why does my air conditioner fan keep running after I turn it off?
Over time, relay switches can become stuck or damaged, preventing the thermostat from communicating with the fan. Essentially, this means that the fan isn’t receiving the commands you’re relaying to the thermostat. So even if you turn your AC off, the fan will continue to run.
How long should the fan run after the AC turns off?
Your HVAC fan should turn on and off with the rest of your heating and cooling system. It’s normal for the fan to kick on a couple of minutes before heating starts or to stay on for a couple of minutes after cooling stops, but your fan shouldn’t run for hours on its own.
Why does the fan keep running on my air conditioner?
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. This means that the entire system, including the fan, will run longer than usual to attain the set temperature.
Should the air conditioner fan run all the time?
Keeping your fan on AUTO is the most energy-efficient option. The fan only runs when the system is on and not continuously. If your fan runs continuously, moisture does not have a chance to drip outside. It blows back into your home and your AC works hard to remove extra moisture from the air.
Why does my HVAC system fan keep running when my AC turns off?
The cause of this problem can be the result of a number of possible issues including extreme temperatures, a broken thermostat, a faulty relay switch, or even a damaged short circuit. The first thing you need to realize is that it’s perfectly normal for your HVAC system fan to continue to run for a few minutes after the air condition stops.
How often should my air conditioner turn on and off?
Depending on indoor and outdoor conditions, this could mean that your system turns on and off every 5 to 10 minutes. An air conditioner that is switching on and off repeatedly is bad for both homeowners and your AC system. It takes more power to start your AC over and over as opposed to when it’s running smoothly as it does in longer cycles.
How do I Turn Off the blower fan on my air conditioner?
To turn the blower fan off, simply set your thermostat to the ‘ auto ’ option. Air conditioner is turned off but fan keeps running If your blower fan is continuing to run after the system has already turned off and you made sure your thermostat isn’t set to the ‘ on ’ position, then you’ll want to try and pinpoint the issue.
Why does my thermostat turn on and off randomly?
If you notice your thermostat screen is blank or fading it may be low on batteries and losing power intermittently. This will cause your AC system to turn on and off when your thermostat loses battery power. Solution: Try replacing the batteries and restarting the thermostat.