What Happens If You Set Your AC Too Low?

How cold is too cold for AC?

60 degrees FahrenheitThe limit is usually anywhere below 60 degrees Fahrenheit.

You shouldn’t turn your air conditioner on if the minimum outside temperature is below that.

If you do, the following can happen.

This may ultimately damage the air conditioner..

Is 75 a good temperature for air conditioning?

Typically, our bodies are most comfortable when the air inside our home is 74-76 degrees. So, a safe setting is 75 degrees. However, this is only necessary when you’re in your home. If you’re like most, you are gone during the day.

Is 78 too hot for a house?

Any time you’re awake and at home during the summer, the ideal thermostat temperature is 78 degrees. This home temperature for energy efficiency lowers your cooling bills by 12 percent compared to keeping it at 74 degrees. If you’re afraid 78 degrees is too warm, remember to dress for the season.

How low can you set your air conditioner?

The EPA recommends about 78° for maximum comfort and efficiency. This is a perfectly comfortable temperature setting for most people, and your air conditioner won’t have to run for so long to reach it. You should also turn the temperature up by 5-10° for 8 hours a day, usually while you are at work.

Is 66 too low for AC?

But the gist of it is true: an AC unit CAN freeze up if it is set too low. … An AC unit is happiest creating space temperatures no lower than 68 degrees fahrenheit. I know some of you out there are all, “I keep MINE at 66 and it’s FINE!” OK, sure, but you’re walking the line, tempting fate and living dangerously.

What’s a good temperature for AC at night?

If you can sleep soundly in a warm room, Energy Star recommends setting the temperature 4° higher than your daytime setting. However, many people prefer sleeping in a cool room, which may result in turning the thermostat down rather than up at night. The best temperature for sleeping is said to be between 60° and 67°F.

What temperature is too low for AC?

The general rule of thumb is that you should never run an air conditioner at 58 degrees F or lower unless you understand the system well enough to know it is designed to be run at lower exterior temperatures than most models — or can be run with the heat exchanger disabled.

Is 72 a good temperature for air conditioning?

A series of psychological experiments by the Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) showed that people have been acculturated to believe that 72° F (22.2° C) is the optimum comfortable room temperature.

Is 73 too cold for AC?

This is an uncomfortable temperature for most families so turning on the air conditioner is the logical solution, usually set in between 73 to 75 degrees. Unfortunately, even if the air conditioning never turns off, it may take hours to lower indoor room temperature (as a whole) from 88 degrees to 75 degrees.

Is 70 a good temperature for air conditioning?

Best temperature to set your thermostat in summer It’s best to not set your thermostat lower than 70 to 72 degrees. Most units are not designed to cool a house below that point, and you risk the system freezing up.

Is it bad to run AC with low Freon?

Why you shouldn’t run an AC with a low charge Although an air conditioner can still function at lessened cooling power after it loses refrigerant, it will start to sustain serious damage that will eventually lead to larger repair needs and possibly a full system breakdown.

How can I tell if my AC is low on Freon?

Signs your air conditioner needs freonAir conditioner is always running but it doesn’t cool your home.Vents are blowing warm air.Electric bills are higher than before.There is a buildup of ice on refrigerant line.A hissing or bubbling sound from the refrigerant line.

How do I know if my AC is low on Freon?

How to Tell if Your Air Conditioner Needs More Refrigerant (Freon…Your AC runs all day and never cools your home. … High energy bills. … Air coming out of vents isn’t very cold. … There’s ice on your refrigerant lines. … Hissing/bubbling noise. … Note: Don’t forget to fix the leak.

Is 70 too cold for AC?

“Do not run the AC unit below 70 degrees indoors for the same reasons — it can freeze the evaporator coil,” he says. With some systems, that threshold might be 65 or 68 degrees. It depends on other factors, too, including airflow and indoor humidity. That’s why never going below 70 degrees is a safe practice.

What happens when AC refrigerant is low?

Your AC evaporator coil will send the refrigerant through this line and if the Freon is low, the coils get too cold and causes a cold liquid refrigerant to flow through the line. What happens then is that surrounding moisture that is on the refrigerant line will freeze up.

What temperature is best for AC?

78FThe Best Temperature Settings When You’re at Home To stay comfortable and save money this summer, the U.S. Department of Energy recommends setting your thermostat to 78F (26C) when you are home. Setting your air conditioner to this level will allow you to stay cool and avoid an unusually high electricity bill.

Is 65 too cold for AC?

The magic number: roughly 65 degrees. According to most studies, the best temperature for getting a good night’s rest is around 65° or somewhere between 60° and 68°.

How cool should my house be if it’s 100 outside?

More specifically, for our area, most systems are designed to lower your indoor temperature about 20°F from the outdoors. So, on days when it’s 100°F outside, and your system is running at its peak efficiency, your indoor temperature will likely never maintain a level lower than about 80°F.