We may have found other answers which could help you.
Click here for Power Lights LightDimplex XT18 Series G?
I too have a dimplex that has just started making a knocking noise!?
How can I fix my Dimplex XL5N storage heater?
fix dimplex storage heater XLSN?
Dimplex exbrury fire?
How to get to the thermostat on a dimplex Quantum Qm150 heater?