Thanks Beeline, I appreciate the input and take heed for your knowledge!
In the sim LGCIU 1 + 2 = No indications on ECAM or Landing gear control panel that the gear is down. All you have is noise and pitch and power to decide if the gear has come down. This is because the sim assumes LGCIU 1 is totally dead if you have LGCIU fault.
Good to know that about the Sim, least in rules out the question!
Thanks all.