yes i let the fan run it turn on about five times and it was bubbling. how many times do u think i should let it run for the crazy thing is that i want to wal-mart to get my son some milk and i drive there and back and there was no smoke coming out of the hood for the first time and its not on c it was right under 1/2 way line but i guess when i head out to drop my son of at school and head to work must of the time the over flow is boiling like crazy. think u so much for taking the time and helping me out