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PROBLEM
POSSIBLE CAUSE
SOLUTION
LCD shows “Er 5”
Cuff pressure above 300mmHg
Measure again after five
minutes. If the monitor is still
abnormal, please contact the
local distributor or the factory
LCD shows “Er 6”
More than 3 minutes with cuff
pressure above 15 mmHg
LCD shows “Er 7”
EEPROM accessing error
LCD shows “Er 8”
Device parameter checking error
LCD shows “Er 9”
MCU self-verify error
LCD shows “Er A”
Pressure sensor parameter error
No response when
you press button or
load battery
Incorrect operation or strong
electromagnetic interference
Take out batteries for five
minutes, and then reinstall all
batteries.
TROUBLESHOOTING 2.2
Summary of Contents for MDS3003
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