What should I do if my Furnace Fan is still running?
If your furnace fan is set to AUTO and is still running, then move on to the next section. Second, troubleshoot for fan limit switch problems. Your fan limit switch is located directly under your furnace hood and controls when your furnace blower turns on and off.
Is it better to have a fan running all the time?
While keeping your fan on 24/7 may be more energy efficient, there are a few downsides to leaving your fan on all of the time: Cons to Keeping Fan Continuously Running: It could cost you hundreds of dollars a year.
What does it mean when a fan is on 24 hours a day?
When you set your fan to “ON,” you’re telling it to keep running 24 hours a day, 7 days a week, regardless of the heating or cooling setting. There are a few positives to this feature. Pros to Keeping Fan Continuously Running:
Is it better to leave the HVAC fan on all the time?
Less frequent starts and stops of the fan can reduce the stress from startup, and potentially help extend it’s lifespan. Leaving the fan on 24/7 ensures cleaner air, as the air is pulled through the filtration or UV light system. This can be better for people with allergies.
Why are my cooling fans running at all times?
3. Cooling fans stay on at all times. If the cooling fans are staying on at all times, this is another (less common) symptom of a possible problem with the cooling fan relay. If the relay shorts internally, it may cause power to be permanently switched on, which will cause the fans to run at all times.
What happens when your AC Fan is running 24 / 7?
Better dehumidification. When your fan is on “AUTO,” moisture is able to drip from the cold cooling coils and drain outside. When the fan is running 24/7, that moisture doesn’t have a chance to drip outside. Instead, it blows back into your house, and, as a result, your AC then has to work ever harder to suck that extra moisture out of the air.
Is it bad to leave a fan on all night?
As the heatwave rages on, Brits are digging out their tower fans and setting them at full speed in desperate attempts to cool down. But if you’ve taken to leaving yours on overnight, it may be doing you more harm than good.
When you set your fan to “ON,” you’re telling it to keep running 24 hours a day, 7 days a week, regardless of the heating or cooling setting. There are a few positives to this feature. Pros to Keeping Fan Continuously Running: