Hello everyone, I have a problem with lennox furnace it won't light. When it starts up it sounds like it will light but it doesn't, while trying o2 led light flashes fast. After it stops trying to light the led light mentioned above flashes slow two flashes at a time. I have never done this sort of stuff but since the money is tight and heat not working i have to get it fixed. Any help or advice regarding the issue will be greatly apreciated.

[COLOR=#333333][h=2][/h][INDENT]I have been having a problem with the boiler not coming on when the thermostats call for heat. When It first happened I turned the power switch to the boiler off and back on and the circulator pump came on and then the boiler fired up. It just started doing this. At different times I will have to do the same thing to get the boiler to kick back on. When it does come on, the house heats up fine. Is it most likely the aquastat relay or could it be something else? The aquastat on the boiler now is a Honeywell L8148G . Thanks[/INDENT] [/COLOR]