Important Question about Resmed S9 90 Watt Adaptor

I have an S9 autoset. I left my Resmed 90W adaptor at someone's house. I have 2 Resmed S9 90 Watt Adaptors at home. However, one is from my current machine and one is from my old machine. I can not remember which one goes to the new S9 and which one goes to the old machine. Can I use either one with my new machine or are they not interchangeable?

Joecpap1000 wrote:I have an S9 autoset. I left my Resmed 90W adaptor at someone's house. I have 2 Resmed S9 90 Watt Adaptors at home. However, one is from my current machine and one is from my old machine. I can not remember which one goes to the new S9 and which one goes to the old machine. Can I use either one with my new machine or are they not interchangeable?

if the plug fits, use it.