I received mine a couple of weeks ago. Not sure how I lived without it. I have been using the single cleaning function until I recently decided to try the Fast mode. It didn’t work. No light on the power supply and no action. I called Maytronics. I gave them my serial number and they said my unit has the single cycle and weekly timer functions only. No Fast or Delay functions and no Bluetooth pairing with iPhone. I can live with this, but does it sound right?