We may have found other answers which could help you.
Click here for Oil Electric PowerOil filled radiator won’t stop clicking?
Low pressure below 1, Lockout on. won't rest?
How can I mend my Hyundai oil filled radiator?
vonhaur Dragan 2500w oil electric heater no power?
Efficiency of my oil heater?
Where can I get a manual for my ritetemp oil heater ?