While you wait for answers, we may have found some information which could help you.
Click here for Heating Hot HalfSorry the make is dimplex model FC2009Ti?
Low pressure below 1, Lockout on. won't rest?
What size spanner to free rad bleed valve?
Oil filled radiator won’t stop clicking?
My electric oil heated radiator isn’t heating up properly. ?
Dimplex RMG25 causes circuit breaker to pop?