We may have found other answers which could help you.
Click here for Water Working Fine HeatOil filled radiator won’t stop clicking?
Low pressure below 1, Lockout on. won't rest?
What size spanner to free rad bleed valve?
Dimplex RMG25 causes circuit breaker to pop?
Where can I get a manual for my ritetemp oil heater ?
Glen Dimplex Oil Filled Heater OFC2000 2KW?