I did all that . When I depress pilot button and light I get good flame , all blue no yellow but as soon as I start to release flam goes out . Also did a continuity and voltage check on both the old and new thermocouple , both are working so I reinstalled the old one in case the new one just wasn't a good match . I held the button for well over a minute till the thermos was cherry red . still no luck . Jim .