Hotpoint TCL770G Tumbledryer Dead with Just Flashing Lights?

Hi there, im a retired ex brown goods and white goods engineer.
However i am flumoxed as to where to start with my dead Hotpoint TCL 770G tumbledryer, ind code 95545700000. Its two year old and it is total dead, with all the lights flashing on front panel, like fairy lights.
I have taken back panel off, no blockages etc, filters clean, but there is no action.
I have no idea what is wrong with this, but with being in the electronic consumer repair trade for over 35 years, i may or should be able to solve this thru logical faultfinding if pointed in the right direction.
All help and advice would be appreciated..ps i have no service manual. Thanks tony

Tony Walker
January 2011