My ideal classic fn30 boiler pilot light has gone out, and I have tried to re-ignite it but to no avail. It is cold now and I have no hot water. Been told it could be the fan that has stuck, but i'm worried about taking the front off the boiler to check it. Also does this model have an overheat stat button and if so where is it . Any one got any help for me pretty cold now. Thanks Wendyatalpha.