Guess I'm out $8. Couldn't get the thing apart - screws all baked on. Not happy with it anyway. Not worth the effort.No, I doubt you messed up, I just don't know what type of system Avanti uses. A thermocouple will generate millivolts to hold a valve open but it needs heat to do that. I've looked for a schematic on that model without any luck. Hopefully the thermocouple will fix it. Keep us posted.