If your device is showing only a green light, follow these steps: Step 1: Check for Moisture in the Transmitter In summer , if the transmitter is placed inside the tank , steam and moisture can collect inside, causing the receiver to show only a green light. To prevent this, place the transmitter outside the tank . Step 2: Clean the Brass Sensor The brass sensor inside the water tank may have carbon or rust buildup . Clean it properly to restore proper...