If it's still pumping, have the service come out and do a compression check and see maybe they just need to recharge the refrigerant.

 

Check the filter; check the coils outside (for ice); THEN do the other stuff.

 

thanks for the replys guys...the A/C seems to almost stop working after a few hours of use (I'm in N. Texas...we use our A/C's year round if we can!)...I think I'll clean the outside unit, crank it down to 60 somthing...wait till it starts to fail and then call the home warrenty company...they've been awesome so far!

txst...I'll make sure to get all the documents of everything they do...I'm lucky in the fact that my brother-in-law is a contract lawyer so if they try to pull something over on me...they won't (like the pool remodel company we're dealing with...their screwed )

I'll update here if I get lucky and get a new outside unit! I have been good and have had 'professional' check-ups on our unit twice a year...hoping the main unit goes out

-Thomas

 

Good luck.

Let me know if you have any questions. I am the engineering manager at one of the largest AC manufactures and I designed systems for over 15 years. If the AC seems to lose capacity after an hour or so of running, the refrigerant level is probably low. The suction pressure drops and the indoor coil starts to freeze up. You can check this by looking at the large diameter copper tube wher it enters the indoor coil - if there is frost on it, that's most likely your problem (in a severe case, the frost can occur at the outdoor unit as well). Of course, if you are low on refrigerant, then you have a leak somewhere.

It's supposed to get warm here on Thursday, so hopefully you can get it fixed quickly.