I have Prius the air con only blows cold air on electric when stopped, when petrol engine running only blows hot air. The local Toyota deal cant solve issue, it's been re gassed. There is mention of new compressor, but estimating cost of 2100 euros. Car is only worth 6000.
welcome! odd problem, how many miles on her? it would make more sense if it were the other way around. are you having any other issues?