I have a 2003 Camry XLE with 65K miles. The AC has always been ice cold even in the Florida summer weather. It was still ice cold yesterday when all of a sudden the AC light on the dash started flashing and it started blowing warm air. Shutting the system off and turning it back on only keeps the light green for a few moments and then it starts flashing again.
I checked the low side pressure with a gauge, because I was sure that the problem wasn't low freon, (it's always been ice cold right up until the moment it failed). The pressure is showing as very high, almost two times higher than recommended, (which I believe is 60psi or so??).
What could be the cause of this? I've found other suspected causes of the flashing light when I did a Google search, but none mention the high freon pressure symptom that I'm seeing. I'm the original owner, and I've never added freon or oil to the system.