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TROUBLESHOOTING TIPS
PROBLEM
No power.
No display appears on the unit.
Readings appear too high or 
too low.
CAUSES AND SOLUTIONS
Replace both batteries with new ones at the 
same time. Check the battery installation for 
proper placement of the battery polarities.
Review the section “Battery Installation”.
Blood pressure varies constantly. Many factors 
including stress, time of day, how you wrap the 
cuff, where you position your wrist, may affect 
your blood pressure. 
Review the sections “Before Taking a 
Measurement” and “Taking a Measurement”.