Hello,

For some reason this year my air conditioner is not producing enough
cold air to cool the upstairs of my house. When I go to the ground
floor there is enough cold air coming out, and it's nice and cold, but
upstairs, it's too hot. I try to lower the thermostat to 70 degrees,
and "cool" air comes out of the vents on the upstairs, but for some
reason, the house is not cooling down enough to make the thermostat
shut off. What's the most likely culprit?

Thanks
Sam

Sam;

What change has occured? If last year it worked well, and this year it's
not, perhaps there has been some change. Like a tree being trimmed? Like
the air filter is clogged and needs changing? Perhaps a refrigerant leak?

Call you friendly neighborhood HVAC repair person and have them check it
out. You'll save in the long run.

Zyp

wrote in message
oups.com...
Hello,

For some reason this year my air conditioner is not producing enough
cold air to cool the upstairs of my house. When I go to the ground
floor there is enough cold air coming out, and it's nice and cold, but
upstairs, it's too hot. I try to lower the thermostat to 70 degrees,
and "cool" air comes out of the vents on the upstairs, but for some
reason, the house is not cooling down enough to make the thermostat
shut off. What's the most likely culprit?

Thanks
Sam

wrote in message
oups.com...
Hello,

For some reason this year my air conditioner is not producing enough
cold air to cool the upstairs of my house. When I go to the ground
floor there is enough cold air coming out, and it's nice and cold, but
upstairs, it's too hot. I try to lower the thermostat to 70 degrees,
and "cool" air comes out of the vents on the upstairs, but for some
reason, the house is not cooling down enough to make the thermostat
shut off. What's the most likely culprit?

Thanks
Sam

Clogged filters comes to mind, but there may be other causes. If a filter
change does not correct it, call a service tech. There are many other
possibilities and they are beyond what the average homeowner can do with
simple tools.

wrote:
Hello,

For some reason this year my air conditioner is not producing enough
cold air to cool the upstairs of my house. When I go to the ground
floor there is enough cold air coming out, and it's nice and cold, but
upstairs, it's too hot. I try to lower the thermostat to 70 degrees,
and "cool" air comes out of the vents on the upstairs, but for some
reason, the house is not cooling down enough to make the thermostat
shut off. What's the most likely culprit?

Thanks
Sam

Any chance someone changed or closed a vent or blocked a return? Even a
clogged filter can cause a problem. In addition have your local
temperatures been higher in your area?


--
Joseph Meehan

Dia 's Muire duit

On Aug 13, 3:00 pm, "Joseph Meehan"
wrote:
wrote:
Hello,

For some reason this year my air conditioner is not producing enough
cold air to cool the upstairs of my house. When I go to the ground
floor there is enough cold air coming out, and it's nice and cold, but
upstairs, it's too hot. I try to lower the thermostat to 70 degrees,
and "cool" air comes out of the vents on the upstairs, but for some
reason, the house is not cooling down enough to make the thermostat
shut off. What's the most likely culprit?

Thanks
Sam

Any chance someone changed or closed a vent or blocked a return? Even a
clogged filter can cause a problem. In addition have your local
temperatures been higher in your area?

--
Joseph Meehan

Dia 's Muire duit

I closed the vents downstairs in hopes that the cold air would come up
to the upper floors, but this has not helped. There does seem to be
some cold air coming from the upstairs, so I'm confused as to why the
upper floors are not getting cold enough. Is it possible that the air
conditioning unit is not generating enough cold air? It seems cold
enough downstairs. How would changing the filters or opening a vent
change things. If it's generating enough cold air this should
continue until the thermostat shuts it off, right?

Thanks
Sam

wrote:
On Aug 13, 3:00 pm, "Joseph Meehan"
wrote:
wrote:
Hello,

For some reason this year my air conditioner is not producing enough
cold air to cool the upstairs of my house. When I go to the ground
floor there is enough cold air coming out, and it's nice and cold,
but upstairs, it's too hot. I try to lower the thermostat to 70
degrees, and "cool" air comes out of the vents on the upstairs, but
for some reason, the house is not cooling down enough to make the
thermostat shut off. What's the most likely culprit?

Thanks
Sam

Any chance someone changed or closed a vent or blocked a return?
Even a clogged filter can cause a problem. In addition have your
local temperatures been higher in your area?

--
Joseph Meehan

Dia 's Muire duit

I closed the vents downstairs in hopes that the cold air would come up
to the upper floors, but this has not helped. There does seem to be
some cold air coming from the upstairs, so I'm confused as to why the
upper floors are not getting cold enough. Is it possible that the air
conditioning unit is not generating enough cold air? It seems cold
enough downstairs. How would changing the filters or opening a vent
change things. If it's generating enough cold air this should
continue until the thermostat shuts it off, right?

Thanks
Sam

Do not close any vents.

A clogged air filter reduces the amount of air coming out of your vents.

You might even have some duct work that has come apart.

Call out your HVAC company to have them check your system.

--
Moe Jones
HVAC Service Technician
Energy Equalizers Inc.
Houston, Texas
www.EnergyEqualizers.com

wrote in message
oups.com...
Hello,

For some reason this year my air conditioner is not producing enough
cold air to cool the upstairs of my house. When I go to the ground
floor there is enough cold air coming out, and it's nice and cold, but
upstairs, it's too hot. I try to lower the thermostat to 70 degrees,
and "cool" air comes out of the vents on the upstairs, but for some
reason, the house is not cooling down enough to make the thermostat
shut off. What's the most likely culprit?

Thanks
Sam


A malfunction with the HVAC system.

I can't tell you for sure what the issue/s are right this minute, as I sent
my crystal ball in for calibration last week.

wrote:

I closed the vents downstairs in hopes that the cold air would come up
to the upper floors, but this has not helped. There does seem to be
some cold air coming from the upstairs, so I'm confused as to why the
upper floors are not getting cold enough. Is it possible that the air
conditioning unit is not generating enough cold air? It seems cold
enough downstairs. How would changing the filters or opening a vent
change things. If it's generating enough cold air this should
continue until the thermostat shuts it off, right?


Heat rises. Close off the upstairs by hanging blankets over the stairwell.
Sleep on a couch in the family room.

when my upstairs starts getting to hot,it usually means my power
attic vent motor is bad. happened twice so far. thought id throw that
in.lucas

http://www.minibite.com/america/malone.htm

If you haven't changed anything but the upstairs is now hot but cold
air is coming from vents, it's possible that there's now a hole in one
of the ducts in the attic. An HVAC expert can point a thermometer at
each vent and see if the air temp coming from each vent is what it's
supposed to be.

Shaun Eli
www.BrainChampagne.com
Brain Champagne: Clever Comedy for Smart Minds (sm)

Shaun Eli wrote:
If you haven't changed anything but the upstairs is now hot but cold
air is coming from vents, it's possible that there's now a hole in one
of the ducts in the attic. An HVAC expert can point a thermometer at
each vent and see if the air temp coming from each vent is what it's
supposed to be.

I don't think you have to be an HVAC expert to read a thermometer. Is there
more to it?

wrote in message

I closed the vents downstairs in hopes that the cold air would come up
to the upper floors, but this has not helped. There does seem to be
some cold air coming from the upstairs, so I'm confused as to why the
upper floors are not getting cold enough. Is it possible that the air
conditioning unit is not generating enough cold air? It seems cold
enough downstairs. How would changing the filters or opening a vent
change things. If it's generating enough cold air this should
continue until the thermostat shuts it off, right?

Thanks
Sam


Did you check the filters as many recommended? If yes, did it make a
difference? If no, do it now and if it does not fix things, call a pro.
Could also be a coil freezing up too.

Judging from your comments you don't have enough understanding of how an AC
works to do anything more than that so call the service guy. I don't mean
that in a nasty way. You may be the best computer programmer or undertaker
and nicest guy in the world, but not everyone can fix some things.

There's a bit of a difference between pointing a thermometer that's
meant to be POINTED at a duct to read the temperature, and sticking a
regular thermometer into the air flow to read the temperature.

Some thermometers are meant to respond instantly to temp and some have
to sit there for a while to read the temp properly.

So yeah, while you don't have to be an HVAC expert to READ a
thermometer, you do have to have some expertise to know which
thermometer works with your particular circumstance.

Sincerely,

Shaun Eli
NOT an HVAC expert

"Shaun Eli" wrote in message
ups.com...
There's a bit of a difference between pointing a thermometer that's
meant to be POINTED at a duct to read the temperature, and sticking a
regular thermometer into the air flow to read the temperature.

Some thermometers are meant to respond instantly to temp and some have
to sit there for a while to read the temp properly.

So yeah, while you don't have to be an HVAC expert to READ a
thermometer, you do have to have some expertise to know which
thermometer works with your particular circumstance.


Lazer... :-)

On Mon, 13 Aug 2007 20:23:55 -0700, Shaun Eli wrote:


There's a bit of a difference between pointing a thermometer that's
meant to be POINTED at a duct to read the temperature, and sticking a
regular thermometer into the air flow to read the temperature.

Actually, no there isn't.


Some thermometers are meant to respond instantly to temp and some have
to sit there for a while to read the temp properly.

So what? You wait till it stabilizes.


So yeah, while you don't have to be an HVAC expert to READ a
thermometer, you do have to have some expertise to know which
thermometer works with your particular circumstance.

Sincerely,

Shaun Eli
NOT an HVAC expert

who can't even operate a thermometer.

wrote in message
oups.com...

I closed the vents downstairs in hopes that the cold air would come up
to the upper floors, but this has not helped. There does seem to be
some cold air coming from the upstairs, so I'm confused as to why the
upper floors are not getting cold enough. Is it possible that the air
conditioning unit is not generating enough cold air? It seems cold
enough downstairs. How would changing the filters or opening a vent
change things. If it's generating enough cold air this should
continue until the thermostat shuts it off, right?


You have some things to learn about Air Conditioning Systems.

Air Conditioners don't "generate" cold air.
They remove heat from the space being conditioned and transfer it to the
outdoors.

In order for the evaporator to absorb the indoor heat, it requires hot air
to travel across the fins. So with a dirty filter/coil, closed off
registers, inadequate ducting, etc... it's cutting down on the capacity of
the overall system.

In order to cool the upstairs, you need adequate ducting to pull the hot air
to the evaporator, while discharging conditioned air back into that space.

Airflow is a key to an efficient/balanced running system.

The only way for this system to shut itself down is for the indoor temp to
reach the stat's set point. This can only be achieved if the unit is capable
of removing more heat from the space then it's gaining.

Try leaving the A/C indoor fan in the on position. If it's on all the
time, it lowers the differential between the floors. That's what you
need to do when it's really hot like this.

Air flow problems.

--

Christopher A. Young
You can't shout down a troll.
You have to starve them.
..

wrote in message
oups.com...
: Hello,
:
: For some reason this year my air conditioner is not producing
enough
: cold air to cool the upstairs of my house. When I go to the
ground
: floor there is enough cold air coming out, and it's nice and
cold, but
: upstairs, it's too hot. I try to lower the thermostat to 70
degrees,
: and "cool" air comes out of the vents on the upstairs, but for
some
: reason, the house is not cooling down enough to make the
thermostat
: shut off. What's the most likely culprit?
:
: Thanks
: Sam
:

I think I figured it out. There was no clog. The valve wasn't working,
the cold. Don't exactly know why. The washer wasn't tightened down by
the screw (reverse thread). I tightened it down (not too tight), and
it's working now. Why not being tightened down prevented any flow I
don't know.

Dan