Faults are indicated on the display by highlighting the middle section with a red banner and a code. The faults that terminate the complete cooling function are displayed on the screen in combination with a beep.
In case of multiple faults, the last fault is shown on the display. Underlying faults are shown after the last fault is acknowledged.
The beep will last for 2 minutes and repeat every 30 minutes until the fault is restored. Error type faults must be manually reset by pressing and holding the control knob between 2 s and 4 s. Warning type faults reset automatically once the condition passes.