There was no warranty cause my son in law pulled a good ol boy barter with someone as dumb as he is. Bill C got me in touch with a real good unit that has been working without flaw for its fourth summer and probably saved my fish from last yrs brutal winter.
Sad thing is I went and looked at the unit my buddy put in for his gfriend and it is the same kind of pump as my first one. Really sad thing is that he got it from a very big pond management company that my friend is good friends with the owner. Some "pros" aren't always reliable. EVERYBODY should do serious research about whatever you're doin.

Do nature a favor, spay/neuter your pets and any weird friends or relatives.