Top mount Haier Refrigerator frosting problem Mod: HTQ21JABRSS .The defrost thermostat is no longer available at any local parts place or even sears and repairclinic site ..so, The defrost Thermostat differentials are 10 c - 20 c .which is 50 F 68 F .which defrost thermostat can I use instead coz I got stuck in this heck service call and gave price figure upon the last time these parts costed me and need Immediate help
Any input appreciated
Thanks