Omron M1 Instruction Manual page 15

4. Troubleshooting and Maintenance
Error Display
Cuff is under inflated.
Movement during measurement.
Cuff over inflated.
Device error.
Pressure is too low.
Cause Remedy
Carefully read and repeat the steps listed
under section 3.3.
Contact your OMRON retail outlet or
distributor.
Refer to Chapter 6.
Press the inflation bulb to inflate the arm
cuff until the reinflation symbol goes out.
Or, deflate the arm cuff and repeat
measurement after checking that the
heartbeat symbol ( ) has been displayed.
Refer to section 3.3.
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