The alarm works if they can no longer spin, but it isn't perfect, their is a blind spot the sensor cannot detect a stuck rotor in. As the pumps slow, the controller does respond. The other guy described the controller not working at all from one of his pumps and it worked with another- that is different from what you describe. If I had to guess he has a burned out driver and a partially jammed pump. So one pump has a defect and it will be taken care of. I am not 100% clear on what you are trying to describe but if the lights come on and the pumps are running at all, it has to be something fairly simple, I have seen pumps jam up in as little as a month when people run very high calcium and KH levels. I have also seen a lot of wet components, it can take as little as one grain of salt to destroy a component if it gets in the right place. To be honest I can only guess until they are here for me to test but I would start with checking that everything is clean and pay particular attention to the upper bearing as I describe in the thread at the top of this forum. Also check that all cables are firmly installed and that nothing got wet or hit with salt creep. It also doesn't hurt to restart everything, sometimes the computer just fritzes out, especially if cables were plugged in with power on or things were reprogrammed several times. If you leave it off for a minute or so and reconnect everything, rememebering to make all your controller connections before plugging in the pumps to the wall it can fix some minor problems.
