Keep each compartment's removable fittings grouped and note their positions before removal. Similar-looking trims and drawers can have different support or clearance requirements.
What the observation tells you
Putting all parts into one pile makes it easier to refit a shelf backwards or place a container in the wrong slot. A later door obstruction may then appear to be a new cooling fault. Do not mark parts with materials that could contaminate food or interfere with clips.
A useful next step
Use photographs of the ordinary assembled layout and follow the manual. Refit without force and check both doors before returning food.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.