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So my ac is acting up

Posted on 8/6/14 at 2:23 pm
Posted by tigersownall
Thibodaux
Member since Sep 2011
15362 posts
Posted on 8/6/14 at 2:23 pm
It's just not holding temperature. I'll have it set on 71. It will stay there most of the day. I actually just checked it around noon. Just now it's reading 78 inside. I can understand the heat but that's ridiculous. It's even doing this at night so I know it's not just the weather. I immediately thought it was a freeon issue. Called the landlord about this the other day Had someone out here that day. Said everything was fine. But like I just said it's still fricking up. Just not consistently. Thoughts?
Posted by partsman103
Member since Sep 2008
8112 posts
Posted on 8/6/14 at 2:24 pm to
Check the house filter?
Posted by Cosmo
glassman's guest house
Member since Oct 2003
120413 posts
Posted on 8/6/14 at 2:24 pm to
Call landlord again.
Posted by LaBR4
Baton Rouge
Member since Sep 2005
51020 posts
Posted on 8/6/14 at 2:24 pm to
Posted by BigEdLSU
All around the south
Member since Sep 2010
20268 posts
Posted on 8/6/14 at 2:25 pm to
Clean it. The exterior.
Posted by pwejr88
Red Stick
Member since Apr 2007
36203 posts
Posted on 8/6/14 at 2:30 pm to
Just brushed up on this myself.

Home a/c units are meant to have the temp. in your house 20 degrees colder than outside temp so keep that in mind.

Also fans can help circulate the air since heat rises.

A crack around your door, open blinds, etc can cause your place to be SO MUCH hotter than usual.

Chances are if your filter has been replaced, you don't see pooling water anywhere, and your vents on the ceiling are all open, it's just hot. Get a box fan. I did and it. is. awesome!

Also try closing the doors to rooms you don't use and closets, this helps concentrate the cool air in the places you spend most of your time. I even close my bedroom and bathroom door and I could tell a difference immediately.
Posted by ithad2bme
Houston transplant from B.R.
Member since Sep 2008
3472 posts
Posted on 8/6/14 at 2:35 pm to
You don't live in Ohio do you?

Guy trolls ex by messing with ac?
Posted by WDE24
Member since Oct 2010
54183 posts
Posted on 8/6/14 at 2:38 pm to
If the house isn't well insulated or sealed and/or has a lot of windows, it is probably just too hot and/or the unit is old/dirty and not operating as efficiently as it used to.
Posted by ForeverLSU02
Albany
Member since Jun 2007
52164 posts
Posted on 8/6/14 at 2:47 pm to
quote:

landlord
Key word here. Call them again and tell them the air isn't working. It's their responsibility to ensure that it's working
Posted by Clint Torres
Member since Oct 2011
2662 posts
Posted on 8/6/14 at 2:48 pm to
capacitor is prolly bad.. and could use a couple lbs of refrigerant.
Posted by Spock's Eyebrow
Member since May 2012
12300 posts
Posted on 8/6/14 at 3:14 pm to
quote:

It's just not holding temperature. I'll have it set on 71. It will stay there most of the day. I actually just checked it around noon. Just now it's reading 78 inside. I can understand the heat but that's ridiculous. It's even doing this at night so I know it's not just the weather. I immediately thought it was a freeon issue. Called the landlord about this the other day Had someone out here that day. Said everything was fine. But like I just said it's still fricking up. Just not consistently. Thoughts?


Since it's intermittent, your best bet is to get a tech out when it's fricking up. That is often easier said than done, so a couple of pieces of evidence you can easily collect are the air temps at the return and the supplies. To do this, let the AC run for 30 minutes, then stick the probe part of a digital thermometer into the grilles and wait for it to stabilize. Do this for the supply closest to the unit, the one with the shortest duct. You should do this when it's holding temperature and when it's not. When it's holding, the difference will probably be 15-20 depending on how hot your attic is and the insulation on your ducts, and when it's not, less than 15, probably a lot less. That said, even 13 or so could be normal with crap insulation on your ducts in a 140 degree attic.

You could also measure the temperature rise at the condenser. Measure down low where it's drawing in air and at the top, above the fan. Also measure the indoor humidity. This guy goes into a lot of detail:

LINK

This is probably above the heads of a lot of techs, but there's a chance it could help them find the problem if they can't manage to be there when it's happening.
Posted by mattloc
Alabama
Member since Sep 2012
4315 posts
Posted on 8/6/14 at 3:28 pm to
Go out to your condenser and grab the big copper line running into the house(not the little line) If the copper feels like a cold beer, your AC is doing all it can do
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