There can be several reasons why the appliance doesn't work. In this case we assume that the appliance does work correctly.
- The battery is wrongly inserted in the battery compartment. When the appliance is protected against reverse connection, and the battery is inserted reversed, the appliance will not work. Please check if the batteries are inserted correctly.
- Bad connection between the battery and the compartment connection terminal. Normally a battery compartment should be designed according to IEC standard. However, sometimes this is not the case. It is possible that there is no good contact between the connection terminal and the battery itself. Then it is possible that the appliance will not work properly.
- There is of course the possibility that the appliance does not work properly. Please make sure this is not the case.