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Posted by oløenneker on July 30, 2006, 4:21 am
acunniff@advancedbionutrition.com wrote:
> We have a four-year-old central air conditioning system that ran
> fine until this summer, but now isn't doing so well. I don't believe
> the air is coming out as cool as it used to, and the system runs
> almost constantly but does not cool the house as much as it
> used to.
>
> (We have a "Space Pack" system, by the way.)
>
> The company that installed it came out twice in one week to check
> it, and checked the attic components as well as the outside unit.
> They have found nothing wrong. However each time they said it
> needed "half a pound" of freon. Does that sound right?
>
> The service order from the second guy who came out said he
> used 1.5 (lbs?) of CB222, and that he "moved the Exp. bulb."
>
> We have replaced the filters. Today as a test I turned the thermostat
> way down (from mid-70s to mid-60s). The system ran constantly
> but the house only got a slight bit cooler.
>
> Any idea what the service guys might want to check next?
How hot was it outside? If your house was in the mid 70's and it is in
the 90's outside, thats probably as cold as you are gonna get. It's not
a refrigerator. It's an Air conditioner. If it is 90 outside, dont
expect your house to get into the 60's... Thats not how these systems
work. And if you set you stat to something like 65, then yes, the system
is going to run all the time, because you are trying to make it reach a
set point it is not designed to reach.
On the other hand, if the service tech has to add refrigerant to the
system, there is most likely a leak somewhere in the system, causing you
to loose the initial charge.
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