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06-21-2009, 12:04 AM
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#1
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Newbie
Join Date: Jun 2009
Posts: 9
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ac problems
i have a goodman central ac unit 2.5 tons, it is haveing a problems, it is not able to cool down my house in the heat of the day. the freeon is okay, but it is running low presssuer on the high side 3/8 line . verry high on the low side 3/4 line yet not getting cold or even sweeting on the low side.
Last edited by egcollom; 06-21-2009 at 12:18 AM.
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06-21-2009, 12:11 AM
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#2
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Member
Join Date: Oct 2008
Location: Suburbs of Detroit Mi
Posts: 3,702
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ac problems
how'bout some periods so we can make sense of your post.
What do you interpret as the lo and hi side? Would be helpful to know so we can direct you.
__________________
Just slow, not stupid.
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06-21-2009, 12:24 AM
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#3
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Newbie
Join Date: Jun 2009
Posts: 9
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ac problems
okay on my unit. on the low pressure side, the large line the cold line it is not geting cold and the pressure is running high. on my high pressure side the 3/8 line it is warm but running a very low pressure.  
Quote:
Originally Posted by hvaclover
how'bout some periods so we can make sense of your post.
What do you interpret as the lo and hi side? Would be helpful to know so we can direct you.
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06-21-2009, 12:28 AM
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#4
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Member
Join Date: Oct 2008
Location: Suburbs of Detroit Mi
Posts: 3,702
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ac problems
and what were the pressures? How did you measure them? Gotta know so i can determine how accurate they are.
__________________
Just slow, not stupid.
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06-21-2009, 12:37 AM
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#5
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Newbie
Join Date: Jun 2009
Posts: 9
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ac problems
okay, i dont have my gauges in front of me but this is what i have wrote down in my log book. at 9 pm on the low side it read 98 lbs on the high side it was 210 lbs.
room temp was 80.5 air temp coming out of air duct was 69.8 
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06-21-2009, 12:43 AM
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#6
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Member
Join Date: Oct 2008
Location: Suburbs of Detroit Mi
Posts: 3,702
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ac problems
Gee, your right...it's broke!
Try a little manners friend. I don't need the 'tude when I'm giving free advice this time of the morning. I asked those question to try to help you but you can get nasty with the trolls who frequent here.
__________________
Just slow, not stupid.
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06-21-2009, 12:48 AM
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#7
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Newbie
Join Date: Jun 2009
Posts: 9
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ac problems
sorry!!!! I have fixed holes in the duct work, and lose wires on the unit, it is starting to get to me im new at this stuff please give me some help
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06-21-2009, 12:50 AM
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#8
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Member
Join Date: Oct 2008
Location: Suburbs of Detroit Mi
Posts: 3,702
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ac problems
my ac is working. Good night.
__________________
Just slow, not stupid.
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06-21-2009, 12:51 AM
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#9
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Newbie
Join Date: Jun 2009
Posts: 9
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ac problems
do you have any thought of what else i need to do
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06-21-2009, 07:56 AM
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#10
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 18,620
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ac problems
Is it a heat pump.
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06-21-2009, 08:25 AM
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#11
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Newbie
Join Date: Jun 2009
Posts: 9
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ac problems
no it is not a heat pump, standard two pcs unit gas heat, r22 freeon it is a goodman 
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06-21-2009, 08:28 AM
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#12
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 18,620
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ac problems
What was the outside temp when you took these readings.
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06-21-2009, 08:34 AM
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#13
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Newbie
Join Date: Jun 2009
Posts: 9
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ac problems
about 100' outside 85 inside
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06-21-2009, 08:42 AM
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#14
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 18,620
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ac problems
210 PSIG head pressure is a saturation temp below ouotdoor ambient.
A restricting liquid line filter drier installed inside the condenser can cause that.
Or a low charge.
You should take all readings again.
And record indoor drybuld temp and wet bulb temp.
Out door drybulb temp.
Head pressure, and liquid line temp.
Vapor pressure and vapor line temp.
Entering and leaving wetbulb and dry bulb temps at the coil(not at registers).
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06-21-2009, 08:46 AM
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#15
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Newbie
Join Date: Jun 2009
Posts: 9
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ac problems
okay, im in central time zone . im going to look at it today it is about 45 min away i will post again win in get more info.
thank you.
glenn
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