While you wait for answers, we may have found some information which could help you.
Click here for Boiler Fires Minutes
Oil filled radiator won’t stop clicking?
What size spanner to free rad bleed valve?
Where can I get a manual for my ritetemp oil heater ?
Low pressure below 1, Lockout on. won't rest?
Sorry the make is dimplex model FC2009Ti?
Fix my oil filled heater?