most builders purchased from appliance companies like Trail and Coast. # W0 ?% ^3 w& i4 X) G# C+ yMine was Trail and they came to fix my microwave door when I first move it. ! i5 m' k# ]6 ~" u7 b* ^1 VBut it went through the builder within the first year, after that, you are on your own to contact the appliance company directly.