Burner goes out when cabinet door is opened!

I have two pop in Gaggenau gas burner cook tops that replaced my gas Thermador unit. The problem is: when on low to simmer the flame sucks out when I open the lower cabinet. It even does it when one of the two doors is wide open and I pull the other side open! I've paid for a technician who contacted Gaggenau with no solution. I think that for the price of these things there should be more interest in solving some of the CUSTOMERS problems.