A/C doesn't work at night...

asabour

Senior member
Aug 28, 2000
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My window air conditioner doesn't blow cool air at night. It pretty much only works when it's hot and sunny outside. Is this because it needs lots of humidity and there is more during the daytime? I don't know, someone please explain.
 

Eli

Super Moderator | Elite Member
Oct 9, 1999
50,419
8
81
Doesen't make sense - the colder the outside air, the easier/better/more efficient the condensor/evaporator would be...
 

Shawn

Lifer
Apr 20, 2003
32,236
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Originally posted by: Eli
Doesen't make sense - the colder the outside air, the easier/better/more efficient the condensor/evaporator would be...

exactly. maybe you're on crack.
 

brian_riendeau

Platinum Member
Oct 15, 1999
2,256
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My A/Cs have a tendency to freeze up at night. I live in the Northeast, the high humidity and lowering temps cause ice to form on the radiator, which stops the air from moving through. This happens with two A/Cs I own, during the day they run perfectly fine since the ice never forms.
 

GroundZero

Diamond Member
Oct 17, 2002
3,669
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Originally posted by: brian_riendeau
My A/Cs have a tendency to freeze up at night. I live in the Northeast, the high humidity and lowering temps cause ice to form on the radiator, which stops the air from moving through. This happens with two A/Cs I own, during the day they run perfectly fine since the ice never forms.



the colder temps at night are the cause for this to happen.
i get the same problems on my printroom a/c when i get print jobs requiring 24 hour operation.
one thing you can do to help prevent this is to have the a/c cycle. (not always blowing cold air) and to set the temp for the a/c to a higher temp at night than at day as the coolr night air helps the a/c to freeze up.
 

brian_riendeau

Platinum Member
Oct 15, 1999
2,256
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the colder temps at night are the cause for this to happen.
i get the same problems on my printroom a/c when i get print jobs requiring 24 hour operation.
one thing you can do to help prevent this is to have the a/c cycle. (not always blowing cold air) and to set the temp for the a/c to a higher temp at night than at day as the coolr night air helps the a/c to freeze up.

I wish my A/Cs were fancy enough to cycle or have seperate temp ranges for different times of the day :)
 

Thegonagle

Diamond Member
Jun 8, 2000
9,773
0
71
Originally posted by: brian_riendeau
the colder temps at night are the cause for this to happen.
i get the same problems on my printroom a/c when i get print jobs requiring 24 hour operation.
one thing you can do to help prevent this is to have the a/c cycle. (not always blowing cold air) and to set the temp for the a/c to a higher temp at night than at day as the coolr night air helps the a/c to freeze up.

I wish my A/Cs were fancy enough to cycle or have seperate temp ranges for different times of the day :)

That little dial that says "Temp"? It's a thermostat. It causes the compressor to cycle on and off as needed to maintain the set temperature.