31
Troubleshooting
SYMBOLS/SYMPTOMS
CONDITIONS/CAUSES
INDICATION/
CORRECTION
Unit does not turn on
when
button is
pushed.
Worn-out batteries.
Replace them with 2 new
AAA (1.5V) (LR03) alkaline
batteries.
Battery polarities have been
positioned incorrectly.
Re-insert the batteries in
the correct positions.
&
EE
Measuring Error Symbol
appears when blood
pressure value displayed
is excessively low or high
Cuff has been placed incorrectly.
Wrap the cuff properly so
that it is positioned
correctly.
Did you talk or move during
measurement?
Measure again. Keep wrist
steady during
measurement.
Shaking of the wrist with the cuff on.
&
E1
Measuring Error Symbol
Air circuit abnormality. Cuff tube may
not be plugged into monitor correctly.
Check cuff connection.
Measure again.
&
E2
Measuring Error Symbol
Inflation pressure exceeding 300
mmHg.
Switch the unit off, then
measure again.
&
E3
Measuring Error Symbol
Can’t determine blood pressure
measurement data.
Wrap the cuff properly and
keep steady. Measure
again.
&
E4
Measuring Error Symbol
If HL158VA cannot be connected to
paired Bluetooth-enabled device over
45 seconds, LCD will display Error
message “E4” and Bluetooth will be
turned off.
Please press and hold
button for 3 seconds to
start Bluetooth function.