Pilot light problem

[reward4615]

Hi, I hope somebody can help. I had new gas cylinders delivered this morning so I lit the pilot light, set heating to manual, then went around bleeding the radiators. Everything working ok, all rad's nice & warm, so left it running for about an hour then switched over to timer. But when the time came for the system to fire up nothing happened, I found the the pilot light out, but now when I light the pilot light it will not stay lit.

[tonyav]

Could be due to a build up of carbon on the tip, give it a clean up and then see what happens.

[BRIGHT SPARK]

You may need a new thermocouple...not too expensive