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Old 07-18-2010, 08:38 PM   #1
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A/C runs too long


I have a question also.My A/C seems to be running to long now could it be the thermostat reeds replaced.It acts like its stuck.The A/C runs for 2 hrs straight.

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Old 07-19-2010, 12:17 AM   #2
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A/C runs too long


Depends how hot it is outside, and what temp your trying to maintain inside. It should run 2 and often more hours.

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Old 07-19-2010, 12:39 AM   #3
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A/C runs too long


Well it has been HOT here in AZ,and it seems to run like that from 1pm- 4 or 5pm the hottest part of the day.We keep it set on 79 or 80.Ang the differential on 1.5
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Old 07-19-2010, 12:43 AM   #4
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A/C runs too long


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Well it has been HOT here in AZ,and it seems to run like that from 1pm- 4 or 5pm the hottest part of the day.We keep it set on 79 or 80.Ang the differential on 1.5
Wow, that's pretty hot, I keep my AC on 72, sometimes down to 70.

With these hots days lately (between 90 and 100 degrees) my AC has been running almost non stop during the day. I was told that is proper, your system should run almost non stop during the hottest days of the year.
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Old 07-19-2010, 12:43 AM   #5
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A/C runs too long


The hottest part of the day. And its only running for 2 hours. Thats not long.

During our heat waves, when we get 3 degrees above normal. Mine will run for 6 hours non stop. nothing wrong with it.
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Old 07-19-2010, 01:01 AM   #6
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A/C runs too long


Thank you all very much,I just thought it was running to long.

I wish everyone a blessed night and week to come.

Shalom.
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Old 07-19-2010, 02:02 AM   #7
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A/C runs too long


I wish mine would run for only 2 hours. Think how much money you are saving over all of us where the AC runs for hours on end.
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Old 07-19-2010, 09:42 AM   #8
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A/C runs too long


Mine only runs for two hours, when I pull the breaker after two hours of use!
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Old 07-19-2010, 09:53 AM   #9
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A/C runs too long


Yeah, mine seems to be running almost all day on the warmer days with going from my set point of 72 up to 76 sometimes. So I have been doing the little things to help it. I have taped all the joints in my duct and closed off all the registers to the basement (Since it is unfinished right now).. I have wrapped the duct in Reflectix bubble insulation, installed a new powered attic fan since my attic was unvented. And this has effectively brought down the temperature on the warmer days to 73/74ish. When a cold front comes through so I can have some time in the attic, I am going to go up there and spray foam the crap out of all attic penetrations and any everywhere near the return penetration. Then lastly will be a few more inches of insulation. Currently my attic insulation is from the 60's and has settled down to around a R20, and current standard in my area is R38.. so even if I get up to R30 i will be happy. Oh, and one large section of the firewall between the garage and house seems to be uninsulatied, so when i dry wall the garage, I will pull down that pegboard and vapor barrior and throw up some fiberglass.

These are things I have been looking at, that may spark some ideas in your area... but like others said.. I would only wish my AC unit ran for 2 straight hours then went back to normal cycle.

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