Originally Posted by Biddles
No evidence of it leaking. I was thinking the compressor might be the problem though not the heater control valve, I thought that was for hot air only?
Well the heater control valve would be a less expensive fix compared to the compressor, but you should probably have someone look at it to determine the cause of the problem. For me I went in for service and the Lexus service tech was the one that informed me of my leaky heater control valve, and i remember the A/C wouldn't work properly (blowing hot air), as soon as I replaced the heater control valve everything worked and the A/C was colder than ever.