Why is my AC working downstairs but not upstairs?

Check for blocked or dirty registers. If they’re blocked by furniture or have dust and debris in them, it can affect air flow. You can vacuum them with an attachment loosen and remove dirt. Closing some vents on the first floor can help you redirect air for better circulation on the second (and beyond) floor.

Why does my AC not cool my upstairs?





Any type of faulty ductwork like improperly installed installation, or leaking or old ducts will force the HVAC unit to work harder to cool your home. Another issue could be that there is not enough ductwork reaching the second floor.

How do I get more air flow from my vents upstairs?

How to Increase Airflow to Second Floor?

  1. Keep Air Conditioner Running in Fan Mode. …
  2. Install a Ceiling Fan. …
  3. Increase the Size of Return Vents. …
  4. Increase Number of Vents. …
  5. Clear the Vents. …
  6. Close Vents on Lower Floors. …
  7. Go for Ductless Air Conditioning. …
  8. Get a Zoned HVAC System.

Why does my AC work better downstairs than upstairs?

HVAC Professional – Zoning Systems





Zone your HVAC system with dampers in your ductwork to control the flow of air in different parts of the home. This creates temperature zones in your home. For example, zone your upstairs to receive more cool air than your downstairs to even out the temperature in your home.

Why is my house warm downstairs but cold upstairs?

Blame physics: hot air rises while cold air sinks. That means your upstairs typically gets hotter than your lower levels, even if your air conditioner’s working in overdrive. Your roof’s hot, too: Unless you have shady tree cover, your roof absorbs a ton of heat from the sun.

How do you balance upstairs and downstairs temperature?

Here’s what you do: set your upstairs thermostat to your desired temperature goals, and then set your downstairs unit to be two degrees warmer. For most homes, this naturally encourages a temperature balance that’s comfortable and right at your desired temperature goals.

Does closing vents downstairs help cool upstairs?

Partially close the registers on the first floor



Your HVAC system cycle times will also become longer (presuming your thermostat is on the first floor), which also helps push cool air to the second floor. For maximum efficacy, make sure that your air-return vents are open and nothing blocks your vents upstairs.

How do I make my downstairs warmer?

Adjust the dampers.

If the first floor of your home is colder in the winter months, keep the dampers on the first-floor vents fully open and only partially open the vents on the second floor to force more of the warm air to enter the first-floor areas.

Does closing vents downstairs help heat upstairs?



Because heat rises, homeowners can consider partially closing upstairs vents and fully opening those downstairs. The top floor often steals most of the heat, but partially closing vents can help to keep other areas of your house warmer without damaging or stressing your house’s HVAC system.

How do you circulate air between floors?

If you have an open 2 story staircase between the floors, install a ceiling fan on the top floor ceiling / above the stairs, and run in clockwise (summer and winter in this case) on a low or medium speed. This will help to circulate / push the air down to the first floor return(s).

How do I even out the temperature in my house?

Here’s how to maintain an even temperature throughout your home:

  1. Clean the Air Ducts. If you have leaks in your air ducts, cool air won’t make it to every air vent, resulting in uneven cooling. …
  2. Turn On the AC Fan. …
  3. Adjust the Air Vents. …
  4. Check the Insulation. …
  5. Install a Zoned System.

How do you adjust the heat on a two story house?



The general rule of thumb for a two-story home is that you should set each thermostat two degrees Fahrenheit apart from the other. During the summer, when your AC is running, set the upper floor at the temperature you actually want in your home. Then set each floor underneath that to two degrees warmer.

Does a 2 story house need 2 AC units?

Having one AC unit for two story home can be done. You will need a dual zone AC with one unit that powers both air conditioners. Having two AC units in your home (upstairs and downstairs) can help balance out the temperature.

What temperature should I set my thermostat at night in the winter?

Set your thermostat to 68 degrees Fahrenheit in the winter

The energy saving key is lowering the temperature (about 10-12 degrees Fahrenheit or 6-8 degrees Celsius) at night or when you’re away.

Is it better to leave thermostat at one temperature?



But as it turns out, the only real pro to keeping your thermostat one temperature is convenience. Sure, when you’re away on vacation or gone for the weekend, the consistent temperature is efficient, but when you’re at home, there’s really no additional benefits.

What is the best temperature for sleeping at night?

between 60 to 67 degrees Fahrenheit

The best bedroom temperature for sleep is approximately 65 degrees Fahrenheit (18.3 degrees Celsius). This may vary by a few degrees from person to person, but most doctors recommend keeping the thermostat set between 60 to 67 degrees Fahrenheit (15.6 to 19.4 degrees Celsius) for the most comfortable sleep.

What is the healthiest temperature to keep your house?

between 68 to 78 degrees Fahrenheit

Depending on the season, the ideal house temperature for both comfort and efficiency is between 68 to 78 degrees Fahrenheit. In the summer, the recommended thermostat setting is 78 degrees F. In the winter, 68 degrees is recommended for energy savings.

Is 72 a good temperature for air conditioning?

Since 72 degrees is generally agreed upon to be an ideal indoor temperature, most people would probably still feel comfortable setting their AC units slightly higher than this, perhaps at around 75.

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.

Is 68 too cold for AC?

An AC unit is happiest creating space temperatures no lower than 68 degrees fahrenheit.