I turned the whole system off for a couple of hours and turned it back on about an hour ago because we were starting to melt and it started working again. We are now back down to 75 degrees.
I wonder if the evap coils could have gotten froze up?
I'm not sure if I mentioned this before but we have a two story house (1400 sq ft) and only this one a/c system to do the job. Needless to say, the upstairs is always warmer than the downstairs.
In an effort to equalize the air flow, I closed off two vents downstairs and it did seem to make a difference. However, I wonder if this is bad for the system? Could this cause the coils to freeze up?
Any other idea why it would just start working again?