How to mend ... Riello Burner Locks Rdb

My riello burner lights for about 12sec and then locks out?

riello 40 starts, runs fine then stops. ?

boutler boiler with riello burner?

riello burner ?

What is causing my Riello Mectron 3M Type 215 to emit fine black ash?

how do you a set fuel jet ?

Oil not reaching burner?

riello burner?

Bleeding it after oil ran out?

Bleed a boiler?

riello oil burner rdb?

I Have a Riello Type 424t55 Burner, running on 28 second Kerosene?

oil boiler fault?

Burner not working ?

Riello 40 series burner stops ?

My Riello 40 loses it prime ?

Fan Cage Making noise on a Riello 40 FS?

Riello RDB1 burner problem?

can you fix the pump on a riello40?

How to increase air supply to Riello RDB Burner?

Riello 40 Burner problem?

how can i mend my riello burner rdb1 483t50?

Riello burner needs reset to start?

bleeding with an allen key which way?

Riello RDB burner runs for about 45 minutes then reset comes on?

Riello pump replacement?

Riello burner keeps tripping out?

pressure adjustment to change from deisel to kerosene on riello burner?

tiger loop?

After running out of oil, I thought I had an airlock in riello burner. ?