Plumbing Questions? Ask a Plumbing Expert.
It is an ignition failure, most common is a dirty flame dectector rod, you can clean it off with *plumbers sand cloth.
the error code,
This is step one of a longer diagnosis. Let me know what you can discover, you will need to use a multi meter that has a *micro amperage*
If you think this is beyond your skill sets, tell me which direction you from the center of the nearest town or city and I will get you a short list of well rated service outfits in your area.