On the A/C questions we're in a mess. A/C condensor fan broken = good cooling at vehicle speed poor A/C performance at idle. This is the reverse situation... good cooling when vehicle's engine is cold, poor A/C cooling when engine is warmed up. The root cause for that is blend door stuck in the open position. My Mom didn't raise me to be an Automotive Air Conditioning engineer for nothing.
Although I will say, that is the worst wording for a question I've seen of late.
What I want to say to the guy is: I understand English isn't your first language. Until you improve your skills a bit, I'd recommend that you just not use pronouns, ever. No 'he' no 'she' and particularly do not use the word "it"
But, alas, this isn't the grammar forum
Sigh. Got that off my chest. Now I feel better.