13TroubleshootingProblem Possible Reason Recommended ActionBatteries are drained. Replace both batteries with new ones.Nothing appears in thedisplay, even when thepower is turned on.Battery terminals are not in the correctposition.Reinstall the batteries with negative andpositive terminals matching those indicated onthe battery compartment.The cuff does notinflate.Battery voltage is too low.(LOW BATTERY mark) blinks. [ If thebatteries are drained completely, the markdoes not appear.]Replace both batteries with new ones.The cuff is not fastened properly. Fasten the cuff correctly.You moved your arm or body during themeasurement.Make sure you remain very still and quietduring the measurement.The cuff position is not correct.Sit comfortably and still.Raise your hand so that the cuff is at the samelevel as your heart.The device does notmeasure.Readings are too highor too low. If you have a very weak or irregular heat beat,the device may have difficulty in determiningyour blood pressure.The value is different from that measured at aclinic or doctor’s office. See “Why measure blood pressure at home?”.Other Remove the batteries. Place them backproperly and try the measurement again.Note: If the actions described above do not solve the problem, contact the dealer. Do not attempt to open or repairthis product yourself, as any attempt to do so will make your warranty invalid.