I have an indesit WIDL126s washer/dryer that is flashing the door lock/on-off led rapidly and the easy-iron led (this is led # 2 going left->right) about once a second.
This indicates a pressure switch problem, or at least it is supposed to. The electronics on these machines are known to be very ‘ticklish’ . Please remove the plug if you intend to have a look inside or try the link in my sig to see if we have someone who can help you.
Pressure switch itself is not to expensive, but other things such as hose blockages can cause this fault.