How to mend Riello 40

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

riello burner?

Fan Cage Making noise on a Riello 40 FS?

Burner not working ?

How do I bleed a Riello oil burner?

how do you a set fuel jet ?

Riello pump replacement?

how can I fix my oil fired riello boiler?

Camray 5 'lockout'?

bleeding with an allen key which way?

Riello 40 Burner problem?

Riello 40 series burner stops ?

can you fix the pump on a riello40?

how can i mend my riello burner rdb1 483t50?

My Riello 40 loses it prime ?

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

Bleeding it after oil ran out?

oil boiler fault?

riello burner ?

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

Riello RDB1 burner problem?

riello oil burner rdb?

Bleed a boiler?

Riello burner keeps tripping out?

Riello burner needs reset to start?

Oil not reaching burner?

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

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

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

riello 40 starts, runs fine then stops. ?