We may have found other answers which could help you.
Click here for Electric Fire HeatingFlashing lights on a dimplex storage heater?
dimplex midel mfs12le?
I too have a dimplex that has just started making a knocking noise!?
How to get to the thermostat on a dimplex Quantum Qm150 heater?
Dimplex XT18 Series G?
How can I fix my Dimplex XL5N storage heater?