The red indicator lamps illuminating the panels above the control knobs fail to light. Otherwise both ovens and clock are fully functional. Loose connection suspected as previously lamps would sometimes flicker when RH control knob was turned.
The red lights indicate heating up - they go out (they should go out) when the selected temperature is reached.
They very probably all share a common neutral return path and it is very likely that this neutral wire is making poor/no contact. The bad contact may well be close to the place where the RH knob is fitted.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix electric cookers.