The target temperature is not set correctly. There is too little water in the system. Note: With new or empty cooling pads, approx. 1 liter of water (=water capacity of the pants) must be added to achieve optimal cooling performance.
The icebein chiller requires 220 V and 50 Hz to achieve maximum cooling performance. If these requirements are not met (e.g. by connecting one or more multiple plugs), the target temperature may not be reached.