It's probably R-22 refrigerant and no you won't beable to do it yourself unless you have some A/C experience. Sounds like you have a leak somewhere it the system and rather then trying to locate and repair the leak, those companies are just adding refrigerant. Inform the next company that you call, that you believe there is a leak in the sysyem and you would like them to locate and fix it rather then just adding refrigerant. It could kind of expensive, so you might want to consider replacing the whole system (indoor and outdoor units). |