While you wait for answers, we may have found some information which could help you.
Click here for Heater Stopped Lightvonhaur Dragan 2500w oil electric heater no power?
What size spanner to free rad bleed valve?
My electric oil heated radiator isn’t heating up properly. ?
Efficiency of my oil heater?
Low pressure below 1, Lockout on. won't rest?
Oil filled radiator won’t stop clicking?