4. Make Sure That The Water Line Going To The ADT Ice Maker Is Not Frozen Or Blocked In Any Way.
If there is no build-up of ice or water inside the ADT ice maker and it is still not working, you may need to check the water line going to it. Sometimes, the water line can become frozen or blocked, which will prevent water from reaching the ice maker.
To check the waterline, start by unplugging the ADT ice maker from the power outlet. Then, locate the water line going to the ice maker and make sure that it is not frozen or blocked. If the water line is frozen, thaw it out with a hairdryer. If the water line is blocked, try flushing it out with warm water.