Have you looked at your hand book and the numerous videos on line ?
According to an AI response it says:
AI Overview
The overheat thermostat on the SH2012 B should be set to 90-100°C (194-212°F). This setting prevents the appliance from overheating and potentially causing damage or safety hazards.
Explanation:
- Overheat Protection:
The overheat thermostat is a safety feature designed to cut off power to the appliance if the temperature exceeds a certain limit.
- Specific Settings:
The recommended temperature setting for the overheat thermostat on the SH2012 B is typically between 90-100°C (194-212°F).
- Importance:
It's crucial to use the correct setting to ensure safe and efficient operation of the appliance.
Hopefully someone may know your specific model and advise. But as this is a safety critical issue you may do better to speak direct to Whale after the Easter break.