My sister get a new ac unit for her house

Hi my name is Jennifer. I am trying to raise funds to get my sister a new ac unit for her house. She is a disabled Army veteran of 12.5 years. Her ac unit went out a few days ago and she does not have the funds to get it replaced. My sister battles multiple sclerosis so the heat is making her very sick. She is currently living in her camp trailer in her driveway with her husband, son and her 2 dogs so they have access to air conditioning. I am just hoping to help her with funds so she can get back into her home with her husband, son and beloved pets. My sister has always been the do not worry I can handle it and I will figure it out type of person. She never ask for help so I felt the need to see what I can do to help her. Arizona heat is brutal and if you know anything about multiple sclerosis, the heat makes it worse. I just want her to be able to live as comfortable as possible. Anything helps. Thank you!