My issue was similar to yours I ended up having to remove the burner all together and clean it out the holes at partially rusted shut water got inside the furnace unit
You might also check to see if you have a flashing red light on the small little board that controls everything on the furnace and make sure that you reset the burner there is a switch to do that but I would guess it's only a gas but I would guess you might have water inside that burner assembly
__________________
2018 3701 LK , 2014 GMC 2500 HD Denali , Duramax
|