Help! - This seems like a nightmare. A friend that does A/C told m...

HOMEOWNER CRIES FOR HELP...

posted: September 8th, 2008 - 2:04pm

QUESTION:
This seems like a nightmare. A friend that does A/C told me that I needed a 2.5t unit for a house I just finished renovating. Its a New Orleans single shotgun style off the ground with T&Grove floors. 1000sq' with 10' ceilings. I insulated the walls and attic very well. I still plan to spray foam under floors but I dont think that will make a big difference to fix this problem. When we went to get the unit the guy at the supply double checked and agreed that 2.5 was the way to go. Unit was installed a couple weeks ago and the house has not seen temp under 82 degrees. The split between return is around 17. Copper sweats outside.
The unit never shuts off. I have had three different guys out to check freon and everything else. What has me confused is that all three of them think this unit should be big enough. The filter is 20x20 and the return air is 24x24. Condenser is 2.5t Goodman and he said the coil is 2.5-3t. Any ideas would be appreciated. If I let it run for 24hrs the thermastat goes down to 82 in the morning and stays at 85 all day long. During the day I am seeing 65 out of the register.

ANSWER: You are picking up heat from somewhere and it is not being reflected in your temperature readings if you are taking an intake temperature reading at the filter and your return duct is leaking in the attic or your electric heat is stuck on your temperature readings won't reflect it.
I am sorry that 3 guys are scratching their heads but something is not as it seems. I'm guessing return duct leak in attic, electric heat is stuck on or your compressor has got a bad valve in it, check it out.