Yes, unfortunately this machine is very delicate with his care. I bought my Oasis Elite last 2007 and in 2008, April, Sears changed the pump. Technician told me, in that moment, that I must have special care with the coins. Today, one-year later technician came at home and he already told me that the pump is broken again.
Is a good machine, but you know, we must have attention with this one.
I have the 4 years maintenance policy and I will extend it when came the end date.