Blood that leaves the capillaries is deep maroon in color because red blood cells now contain reduced hemoglobin-hemoglobin that has given up its oxygen and taken on hydrogen ions. In the end, about 85% of the water that left a capillary at the arterial end returns to it at the venous end.
Depending on the vacuum model, this repair can take between 10 and 30 minutes to complete. Remove the Old Vacuum Power Cord. Power cord replacement is a basic repair for all sorts of machines and tools, and removing the old cord is always the first step.
Other things to try: 1  Check to see if the pads cable is attached to the AED properly or replace elctrodes. 2  Cycle the power on the ZOLL AED Plus by turning the unit off and then on again. 3  Replace all the batteries at the same time with new batteries (Do not use Panasonic or Rayovac batteries).