In order to intimate the user for the remaining useful life of aluminum electrolytic capacitors in the voltage fed inverter circuit, a full duplex communication between microcontroller board and user mobile phone is established. The microcontroller is programmed to send the text SMS to user mobile using AT commands for serial communication between microcontroller board and GSM modem. From table 2, for the remaining life of 15000 Hrs. at 100°C Case temperature a warning SMS is sent to the user together with blinking of RED LEDs followed by buzzer for visual and audio warning signals to nearby operators. When the nearby operators shut down the circuit an ‘OK’ SMS is sent out, otherwise the remote operator has the choice to shut down the circuit by sending ‘OFF’ SMS after which the circuit will be shut down and again OK’ SMS is sent to user.