"RDM Starting" What?

  After I stopped at  the post office today, on my way to Schaghticoke to tend to  Molly, and before I had to go to the bank for a notarization, I stopped to get gas, thinking I should probably drive to VVH to see what's going on.
   I pulled up to the only available gas pump, prepared to insert my credit card, and nothing happened. The message on the screen of the pump read "RDM Starting."  There was a prior charge on the screen, which is usual, so the pump didn't appear to be out of order.
  I figure, as I always do, that I ought to know what this message means, and that I'm the only person in the world of gas pumping that is ignorant of the meaning.
 So, as I always do, as in trying to turn my TV on, I pressed every possible button on the pump, cancel. pay outside, insert card again and again. But RDM still remained.
  Out of the blue, or from the next pump, a man appeared, asking if he could help. It turned out he had  no idea what the RDM meant either, and he pretty much repeated all of what I'd already done, before saying there was something wrong with the pump. He offered to go inside and ask, or to help me find another available pump, but I declined his kind offer, as I had other things to do, like find a notary.
  He asked if I was Marilyn's mom. I admitted such. He is one of the Sandersons, the brother of her next-door neighbor. I told him they were in Delaware, and he said last year, during a similar function, at Myrtle Beach, he accidentally came across Joe T. and then Marilyn.
  Small world, eh? But I need gas if I'm to go to Vermont, and I, as well as at least one other, still can't interpret the meaning of RDM.
  Ironically, or coincidentally if you prefer, I was on the way to the bank to notarize my IRA which includes a RMD, which I know means Required  Minimum Distribution. But I don't see that as applying to gas.