We may have found other answers which could help you.
Click here for One Radiator Not Warming UpFix my oil filled heater?
Glen Dimplex Oil Filled Heater OFC2000 2KW?
What size spanner to free rad bleed valve?
How can I mend my Hyundai oil filled radiator?
vonhaur Dragan 2500w oil electric heater no power?
My electric oil heated radiator isn’t heating up properly. ?