I have a Pool Rover Jr. that is about 4 years old. Ran it for the first time yesterday and it was fine. Tried to run it today and nothing happens. It appears to be the transformer as the power comes on, I hit the reset button and after a period of time the light will start switching from the top to bottom every few seconds. The fuse is good and I unplugged the Rover and just powered the transformer up and the same thing happened. I took a tester to the plug for the rover cable on the transformer; there is not any power no matter which light happens to be lit. Anyone out there run into something like this? I hate the have to buy a new transformer if it only needs a part replaced. Have not opened it up yet but plan on doing that as a next step. Thanks in advance for any assistance provided.