A&D UA-787 Plus Instruction Manual - Troubleshooting
English 14
described in this manual to get to know
your normal blood pressure. Regular
readings give a more comprehensive blood
pressure history. Be sure to note date and
time when recording your blood pressure.
Consult your doctor to interpret your blood
pressure data.
Troubleshooting
Problem Possible
Reason Recommended
Action
Batteries are drained.
Replace all batteries with new
ones.
Nothing
appears on the
display, even
when the power
is turned on.
Battery terminals are not
in the correct position.
Reinstall the batteries with
negative and positive terminals
matching those indicated on the
battery compartment.
The cuff does
not inflate.
Battery voltage is too low.
(LOW BATTERY mark)
blinks. [ If the batteries are
drained completely, the
mark does not appear.]
Replace all batteries with new
ones.
The cuff is not fastened
properly.
Fasten the cuff correctly.
You moved your arm or
body during the
measurement.
Make sure you remain very still
and quiet during the
measurement.
The cuff position is not
correct.
Sit comfortably and still.
Raise your hand so that the cuff
is at the same level as your heart.
The unit does
not measure.
Readings are
too high or too
low.
If you have a very weak or
irregular heat beat, the device
may have difficulty in determining
your blood pressure.
The value is different
from that measured at a
clinic or doctor’s office.
Refer to “Why measure blood
pressure at home”.
Other
Remove the batteries. Place
them back properly 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 repair this product, as any attempt to
do so will make your warranty invalid.