Skok, the autostart sequences need to be performed in a certain amount of time, or the controller aborts the start. If the propane lights up, but the temp probe doesnt come up to temp (over the preset minimum to go on to the next step, pumping in kero) in a certain amount of time, it will give the "timed out" reading and you need to start over. My GB autostart unit does the same thing, if there isnt enough propane on for the start it takes too long to get up over the minimum temp.

AJC