Tripped or defective safety device, gas valve set on pilot, bad transformer. Don`t kill yourself looking for the aquastat. That is a boiler control and your furnace does not have one.
Electic good-- whatelse can I test?
You sould be able to see it either in the open or through a sight glass. If you have a continious pilot you just look at the burner where the furnace is open. Higher efficiency furnaces have an intermitent pilot that is only light when it is needed to light the main burner. And some do not have pilots at all and an ignightor lights the burner directly.
How do I light pilot light on furnace
Pilot gas is the very small flow/burner used to maintain an ignition flame in a gas appliance. Sometimes called a pilot light, or pilot flame, it's used to ignite the main burner.
Pilot light would work but the main burner would not as the thermocouple proves that there is a pilot light to fire. The main gas valve would not open
my boiler wont ignite
The gas furnace pilot (flame is lit all the time) is sometimes referred to as a pilot light, but no matter what you call it, its purpose is to serve as a small ignition flame for the gas burner. And when this little flame fails to operate properly or go out, it's one of the most common reasons a gas furnace will fail to operate.
Think it is just that the pilot light is lighting the main burner, which makes a booming sound.
At pilot light, pilot light flows around thermocouple.
Pilot light
No standing pilot, it is a spark ignition unit
Defective thermocouple or possibly a dirty or clogged pilot orifice.
If this is happening you need to get your furnace serviced by a qualified engineer.