사용자에게 답변하기: Pump works, briefly, then gets quieter, doesn't pumpHi, I was having the same problem. My machine was purchased in 2004, and I must admit I took poor care of it, until the last couple of years. I found the solution, between this site and Youtube. A new pump solved the problem (https://www.amazon.com/gp/product/B00B8K...). Replacement is fairly easy, takes about 30 minutes, all you need are Phillips screwdriver and a couple of metric wrenches (10 and 12mm). One video I found was not very helpful, about half of it was useless (https://www.youtube.com/watch?v=sMVy6l7f...) but it at least familiarizes you with the internal workings.