Hi,
Not sure re the model but check if the suspension rods are still attached OK. These are what the straps that you replaced are connected to.
I couldn't find a service manual for your model but I think that this [document|28259|service manual] for a comparable USA model might be very close. Run the diagnostics as shown on p.38 to see what error codes if any are shown.
Also here's the [document|28260|parts list] for the AU model which may help if you need parts. Search online using the part number to find suppliers.