Nice Cookies

Ok so I had an AC guy come out and put in some Freon. After about 2 weeks of me setting the thermostat on 67-69 degrees and the house being at 76-79 degrees I decided he didn’t do something right. I call someone else, they come in, say the previous person over charged it with Freon. So I pay the necessary money for him to remove what I previously paid for. Now, two days later, and even hotter outside, I am having the same problem only worse!!

I run the thermostat at 65 no less and the house during 2pm until about 2am is at 76+ degrees. Which is TOO HOT for me. So I am not sure what to do from here. Both AC guys said there was no leak or any other problems. The only similar issue was that the upstairs attic portion of the unit was just old and not the best compatibility with the newer outside unit.

Any Ideas?
Make sure the filter is clean and unclogged. Check and clean both coils, evaporator (inside) and condenser (outside) with aluminum brightner and water, buy a coil comb.

Check the insulation on the copper lines going from inside to out, the larger line should be insulated, also all duct work.

Also help the air circulate back to the return, keep inside doors open. All that will help. Leave the AC on when not home all day, like set to 78 so the unit doesn’t have to cool a 95 degree house when you get home from work.
76 is "TOO HOT"
LMAO

1. the thermostat doesnt dictate what temperature the air coming out of the vents is. it dictates what temperature the area will be at when the unit cycles on/off. i cant imagine you actually saying a room at 76 degrees is "TOO HOT"
2. call a different company. neither of those guys should have left if its not operating properly.
3. if a unit is undercharged, it can freeze up, meaning your evaporator coil literally becomes a block of ice. at which time, no air will flow through it and the house will not cool.
4. if its overcharged you will get poor heat transfer and it will waste money.

if both of the service guys were from the same company you need to call their boss and tell them to come fix your shit and refund your money for atleast one of those calls.

get a thermometer. with the system cooling, take the temperature of the air coming out of a supply vent, and going into the return vent. the difference between the two is called the TD (temperature differential). it should be around 18 degrees. the air being pumped back into the house should be 18 degrees colder then what the temperature is inside the house.

and make sure you get accurate readings. if your thermometer takes time to ajust to changing temperatures dont just throw it up there for a few seconds.

if you can, use one of those laser pointer, digital thermometers. those are accurate and fast. point it at the vent itself and find the difference between the two numbers.
filter and freon. You shouldn’t have paid for the 2nd visit (if it was the saome company)….he was fixing a fuckup from the 1st guy.

My unit was low on freon so the line was freezing up. That plus a clogged filter was causing a problem on mine. If you have ceiling vents, make sure to run the ceiling fans (if you have them) too to help circulate the cooler air better.

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