Installed PL1615.  Followed the instructions for "priming the pump for the first time." I have a green power light.

Step 8: Press the Speed 1 button to select the 750 speed. Step 9: Press Start. Nothing happens. I cannot adjust the operating speed with the up/down arrows. The pump speeds up to 3450 rpm when Quick Clean mode is selected. Only mode that the pump operates in is QUICK CLEAN.