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