Lack off Cooling during the day - http://www.hvacmechanic.com/ Forums
Original message
| rpf01
 |  "Lack of Cooling during the day"
, posted Sat 5 Jul 08:53:  
My 2 ton Carrier systems seems to only cool at night when the heat gain drops off from the sun, unit is running 24/7....Any suggestions on repairing...system is almost 20 years old...
rpf01
[this message was edited by rpf01 on Sat 5 Jul 08:55] |
| Replies:
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| rpf01
|  "Re(1):Lack of Cooling during the day"
, posted Sat 5 Jul 10:55
Cleaned outside coil, temperature coming out of register is about 64 F...
rpf01
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| | theduke03
| "Re(2):Lack of Cooling during the day" , posted Sat 5 Jul 12:05
What is the model # of the indoor and outdoor units? If all return ducts are intact, and Both coils clean then I would say probably a low charge. Go to outdoor unit and feel the larger copper pipe. Is it beer can cold or room temp/not sweating?
Is this the round type unit with spiny fins? If so then to effectively clean the outdoor unit may require an acid wash.
At 20 years it's time to start thinking about the future, which will be brief for your unit.
"My dad was the most feared furnace fighter in Northern Indiana."
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| | rpf01
| "Re(3):Lack of Cooling during the day" , posted Sat 5 Jul 12:23
Cold and sweating...
rpf01
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| | theduke03
| "Re(4):Lack of Cooling during the day" , posted Sat 5 Jul 12:28
Well I wasn't expecting that but you should really take a look at the indoor coil(the side that is closest to filter). It could be schmegged.
"My dad was the most feared furnace fighter in Northern Indiana."
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| theduke03
| "Re(1):Lack of Cooling during the day" , posted Sat 5 Jul 09:54
Sounds like either dirty coils(inside and outside), low charge, or both.
"My dad was the most feared furnace fighter in Northern Indiana."
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| | Houston204
| "Re(2):Lack of Cooling during the day" , posted Sat 5 Jul 10:58
A return air leak will also only cool at night.
Even though it must pass through the evaporator coil.
"Tip of the Day" Remember to remove power first.
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| | rpf01
| "Re(3):Lack of Cooling during the day" , posted Sat 5 Jul 11:00
Sealed ducts with mastic at interfaces
rpf01
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