Timberk T-WSS30-N41D-V [24/44] Connect the power cord to the electric main the indicator 1 will come on 2 press button 2 to test voltage will not be applied the indicator 1 will turn off and the reset button 3 will go up 3 to restart press button 3 voltage will be applied again and the indicator 1 will come on note if voltage is not disconnected and or the indicator 1 does not turn off once you press the test button 2 the rcd does not work properly if voltage is not connected and or the indicator 1 does not come on once you press the reset button 3 the water heater does not work properly in either case disconnect the water heater and call the service center to reduce the risk of electrocution do not disassemble remove or pour liquid into the product