The ideal temperature for a Waeco freezer, or any freezer for that matter, is generally around -18 degrees Celsius or 0 degrees Fahrenheit. This temperature ensures that food remains frozen and prevents bacterial growth, maintaining the quality and safety of the stored items. However, it's worth noting that different models of Waeco freezers may have specific temperature ranges or recommended settings. It is always best to refer to the manufacturer's instructions or consult the product manual for precise temperature recommendations for your specific Waeco freezer model.