u/Aggravating-Bid-2445

Re:

https://www.trane.com/residential/en/assets/product-brochures/TT_72-1355-R-03_TR_Coils-ConsumerBrochure_SV.pdf

Refrigerant Detection System Factory installed Mitigation Control Board (MCB) and leak detection sensor to accommodate A2L refrigerants.

My new Trane AC system in the attic has a sound of gas vault leaking air, and the light is flushing green yellow, my AC installer Co. Technicians said no leaking found.

Is it normal? I wish that I could upload the video here, but it won't work on this App.

My new AC system is blowing cold air with some kind of weird burning smell in my rooms, Why?!

My AC service company won't send the technicians to come to check it, unless there are machine failure issues.