E-21
Maintenance
Do not open the device. It uses delicate electrical components and an intricate air unit that could be
damaged. If you cannot fix the problem using the troubleshooting instructions, contact the authorized
dealer in your area or our customer service department. The A&D customer service will provide technical
information, spare parts and units to authorized dealers.
Troubleshooting
Problem
Possible Reason
Recommended Action
Nothing appears in
the display, even
when the device is
turned on.
Batteries are drained.
Replace all batteries with new ones.
Battery terminals are not in the
correct position.
Reinstall the batteries with terminals matching
those indicated in 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 device does
not measure.
Readings are too
high or too low.
The cuff is not applied properly.
Apply the cuff correctly.
You moved your wrist or body
during the measurement.
Make sure you remain very still and quiet
during the measurement.
The cuff position i1`s not correct. Sit comfortably and still. Raise your hand so that
the cuff is level at the same level as your heart.
––––––––––––––––
If you have a weak or irregular heart beat, the
device may have difficulty in determining your
blood pressure.
