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#1
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Central air conditioner stops working
Hello all, I am hopng someone can help. My central air system works
fine for a few hours, but then after (approx 8 hours or so) it is no longer blowing air out of the vents in the ceiling. The system is running as it should, compressor fan outside is still spinning and it sounds like it should be working, but no air is coming out, although the vent does still seem cold, no air is coming out of it. The only way to get it to work again is to turn the system off for about 2 hours, then when I turn it back on it is working normally. Could something be freezing up? Has anyone heard or seen this before, anything I can look at? Thanks in advance... |
#3
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Central air conditioner stops working
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#4
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Central air conditioner stops working
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#5
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Central air conditioner stops working
On Mon, 25 Jun 2007 23:26:35 -0400, mm
wrote: No amount of freezing would stop air from coming out of the vents if the fan were running. Or if the other two are right, I could be wrong! (although don't depend on me. You can and should verify this by going to the furance and listening to tell if the fan is running or not.) |
#6
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Central air conditioner stops working
On Tue, 26 Jun 2007 00:43:07 -0400, Meat Plow
wrote: On Tue, 26 Jun 2007 00:07:38 -0400, mm wrote: On Mon, 25 Jun 2007 23:26:35 -0400, mm wrote: No amount of freezing would stop air from coming out of the vents if the fan were running. Or if the other two are right, I could be wrong! I've seen plenty of A coils freeze like a block of ice. A small amount of air does leak around the coil but that's it. There is no reason to bring gender into this. Thanks. I guess I was wrong in those two lines of mine at the top, and I presume the OP is still reading. :-) |
#7
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Central air conditioner stops working
Could something be freezing up?
Yes, paradoxically caused by a refrigerant leak and subsequent low refrigerant charge. Another possibility is squirrel-cage fan blade out of balance, which slows the fan speed and overheats the motor. They get unbalanced from corrosion, especially if the fan is after the evaporator. |
#8
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Central air conditioner stops working
Actually, yes, I've seen this happen. Freezing indoor coil will
block air flow. -- Christopher A. Young You can't shout down a troll. You have to starve them. .. "mm" wrote in message ... : : Yes, I think, but that would be an effect of the inside fan not : blowing, not a cause of it. No amount of freezing would stop air from : coming out of the vents if the fan were running. (although don't : depend on me. You can and should verify this by going to the furance : and listening to tell if the fan is running or not.) : |
#9
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Central air conditioner stops working
Yes, it's possible. Or, the outdoor unit may be dirty, and
overheating. -- Christopher A. Young You can't shout down a troll. You have to starve them. .. : : Hello all, I am hopng someone can help. My central air system works : fine for a few hours, but then after (approx 8 hours or so) it is no : longer blowing air out of the vents in the ceiling. The system is : running as it should, compressor fan outside is still spinning and it : sounds like it should be working, but no air is coming out, although : the vent does still seem cold, no air is coming out of it. The only : way to get it to work again is to turn the system off for about 2 : hours, then when I turn it back on it is working normally. Could : something be freezing up? : |
#10
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Central air conditioner stops working
Or, the outdoor unit is overheating. At which point the solution
is to clean the outdoor unit's coils. -- Christopher A. Young You can't shout down a troll. You have to starve them. .. "ValveJob" wrote in message ... : : The inside coil is freezing over and caked with ice preventing : any/much air from flowing thru it. It is caused by the slow leak of : freon in the system. The cure is to add a small can or two of R-22 : until the temperature of that large insulated suction line going to : the outside unit is 'beer can cold'. Or about 50 to 55 degrees. : : : |
#11
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Central air conditioner stops working
Male coils don't blow unless there is something terribly wrong.
-- Christopher A. Young You can't shout down a troll. You have to starve them. .. "mm" wrote in message ... : : There is no reason to bring gender into this. : : Thanks. I guess I was wrong in those two lines of mine at the top, : and I presume the OP is still reading. : : :-) : |
#12
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Central air conditioner stops working
I just had my rental house's serviced for the same problem, seems the coils were covered in dog hair & air wasn't getting through thus allowing the coils to freeze over fairly quickly |
#13
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Central air conditioner stops working
On Jun 26, 8:12 am, Meat Plow wrote:
On Tue, 26 Jun 2007 11:46:28 +0000, longshot wrote: I just had my rental house's serviced for the same problem, seems the coils were covered in dog hair & air wasn't getting through thus allowing the coils to freeze over fairly quickly That's another possibility that I've seen back in my hvac days in the 70's-80's. Same for the condensing unit outside being dirty/obstructed and not being able to produce enough refrigerant. Great thanks for all of the replies. I will definitely check out the inside coil and see if it si freezing over, this makes the most sense. I did have a tech over, but when he came over it was working properly. he check ed the levels of freon and a couple of other things and said everything looked fine. |
#14
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Central air conditioner stops working
"Meat Plow" wrote in message ... On Tue, 26 Jun 2007 00:07:38 -0400, mm wrote: On Mon, 25 Jun 2007 23:26:35 -0400, mm wrote: No amount of freezing would stop air from coming out of the vents if the fan were running. Or if the other two are right, I could be wrong! I've seen plenty of A coils freeze like a block of ice. A small amount of air does leak around the coil but that's it. I had one that did the same thin, almost no air as the coil froze. It was low on the refrigerant. Funny how low refrigerant causes the coils to freeze but that is the way it works. |
#15
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Central air conditioner stops working
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