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What temp is y’all’s AC’s blowing in this heat?
Posted on 8/20/23 at 4:28 pm
Posted on 8/20/23 at 4:28 pm
Mine was struggling yesterday evening and noticed it was blowing warm…. Shut it down for about 15 minutes and it seemed to start blowing cool again. Checked the temps with my infrared thermometer and it was between 62-66 after it got dark but been more like lower 70’s in the heat of the day
This post was edited on 8/20/23 at 4:36 pm
Posted on 8/20/23 at 4:54 pm to Glock17
To my knowledge, the air coming out of the vent should be way less than low 70s.
Posted on 8/20/23 at 4:54 pm to Glock17
You likely need to clean your condensing unit.
You want about a 20 degree split between your return temp and vent temp.
You want about a 20 degree split between your return temp and vent temp.
Posted on 8/20/23 at 6:06 pm to Glock17
quote:
Mine was struggling yesterday evening and noticed it was blowing warm…. Shut it down for about 15 minutes and it seemed to start blowing cool again. Checked the temps with my infrared thermometer and it was between 62-66 after it got dark but been more like lower 70’s in the heat of the day
Does sound like you may have had a slightly frozen evaporator coil, indicating you could be a little low on refrigerant. But you should have a cooler temperature than the low 70s, during the day, exiting the nearest supply register to the furnace/air handler. A temperature split of 16-20 F would be considered, to a tech, acceptable in this heat.
I just measured my nearest supply register with an infrared thermometer (5:50 pm) and it’s 57 F (probe thermometer would be more accurate). My split right now with the return grill is 16 F. Attic temperature is 121 F - those supply ducts are picking up heat from that hot attic.
But I agree do the simple things first, clean the outside condensing coil, make sure you have a clean, and not a high MERV 1 inch thick return grill filter, and see if that helps.
Posted on 8/20/23 at 8:55 pm to Glock17
Checked vent temp last week with a cheap thermometer and it was showing between 53-56. A/C was set on 71.
Be careful with that coil cleaner. I used some on a couple of window units and it ate up the fins...
Be careful with that coil cleaner. I used some on a couple of window units and it ate up the fins...
![](https://images.tigerdroppings.com/Images/Icons/Iconbanghead.gif)
![](https://images.tigerdroppings.com/Images/icons/shrug.gif)
Posted on 8/20/23 at 9:47 pm to Glock17
As high as 71 when it's really boiling arse hot mid day.
32 year old unit, so the fact that it's cooling at all is a win in my book.
32 year old unit, so the fact that it's cooling at all is a win in my book.
Posted on 8/22/23 at 7:59 am to Glock17
72 degrees on infrared thermo coming out of the register during the hottest part of the day. Coils are clean and the system is about 12 years old. 5 ton unit with terrible duct work that was done by our builder’s AC guy.
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