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”.
Data cannot be sent.
The destination device is too far away from the 
monitor. After checking that there are no sources 
of interference nearby, move the device to a 
distance within 16 ft. (5 m) of the monitor.
The 
Bluetooth
 function on the destination 
device is turned off. Turn on the 
Bluetooth
 
function and try sending the data again.
Pairing (registering) has not been completed. 
Perform pairing (registration). Refer to 
“
To Pair 
This Device With a Smartphone
”
.
The application on the destination device is not 
ready. Check the application then try sending the 
data again. Refer to “To Pair This Device With a 
Smartphone”. If the Err symbol still lights after 
checking the application, contact customer service.
The Bluetooth function on the monitor is not 
turned on. Press the
      /    
button, turn on the 
Bluetooth function and try sending the data again.
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