Okay... so, weirdest thing. I have an Aquatec booster pump with the auto shut-off switch installed. It worked fine for the first while I had it. Then it stopped working. I didn't have time or attention to mess with it and just dealt with having to unplug the pump every time I was done making water.
Then, in the late fall, it started working again? I noticed the sound die away one day when I turned the flow off... and it was off. Not trusting it, I unplugged it anyway. But after a few more uses, it was still working consistently, just fine, since... November, or so? And then, just a week or so ago... it stopped working again! Several uses of it since, and it still fails to cut off.
Thing is, my water pressure at the input to my RO/DI unit isn't significantly lower, still reading about 70psi when the pump is running, the same as it has been the last few months.
The only thing I can even guess has changed is that the cold water coming out of the tap is now warmer than it was? Could the shut-off actually be sensitive to input water temp? Does anyone know if there is a way to correct this? Or has anyone else even experienced this same issue?
Then, in the late fall, it started working again? I noticed the sound die away one day when I turned the flow off... and it was off. Not trusting it, I unplugged it anyway. But after a few more uses, it was still working consistently, just fine, since... November, or so? And then, just a week or so ago... it stopped working again! Several uses of it since, and it still fails to cut off.
Thing is, my water pressure at the input to my RO/DI unit isn't significantly lower, still reading about 70psi when the pump is running, the same as it has been the last few months.
The only thing I can even guess has changed is that the cold water coming out of the tap is now warmer than it was? Could the shut-off actually be sensitive to input water temp? Does anyone know if there is a way to correct this? Or has anyone else even experienced this same issue?