Adding one thing - Your floor plus 3-on/1-easy rhythm is solid. Two tweaks that saved my knees and Achilles: cap treadmill incline at 0–1% with quick light steps under your hips, and add 2–3 sets of slow eccentric calf raises plus a set of tib raises after runs. I also kept all cardio at RPE 3–4/10 for the first month and only progressed if I hit my floor two weeks in a row; if I missed, I repeated the week instead of adding.
One more easy check: unplug it and make sure there isn’t any leftover packing under the jar and that the blade assembly and rubber gasket are screwed on snugly. Many models won’t wake up until the pitcher is twisted fully into the locked position and the little lid cap is snapped in, then you may need to hold the power button for a second before picking a speed and pressing Start. If your kitchen’s GFCI or a breaker elsewhere has tripped, reset that; if it’s still completely dead after these steps, let the seller replace it.
