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Old 06-21-2009, 12:04 AM   #1
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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.


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Old 06-21-2009, 12:11 AM   #2
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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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Old 06-21-2009, 12:24 AM   #3
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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.







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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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Old 06-21-2009, 12:28 AM   #4
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and what were the pressures? How did you measure them? Gotta know so i can determine how accurate they are.
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Old 06-21-2009, 12:37 AM   #5
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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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Old 06-21-2009, 12:43 AM   #6
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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.
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Old 06-21-2009, 12:48 AM   #7
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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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Old 06-21-2009, 12:50 AM   #8
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my ac is working. Good night.
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Old 06-21-2009, 12:51 AM   #9
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do you have any thought of what else i need to do
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Old 06-21-2009, 07:56 AM   #10
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Is it a heat pump.
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Old 06-21-2009, 08:25 AM   #11
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no it is not a heat pump, standard two pcs unit gas heat, r22 freeon it is a goodman
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Old 06-21-2009, 08:28 AM   #12
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What was the outside temp when you took these readings.
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Old 06-21-2009, 08:34 AM   #13
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about 100' outside 85 inside
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Old 06-21-2009, 08:42 AM   #14
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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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Old 06-21-2009, 08:46 AM   #15
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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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