What to do if the Covidien Nellcor OxiMax N-600x Medical Equipment displays Error Code: “EEE XXX” followed by a number?
- DDonna BrewerAug 4, 2025
If the Covidien Medical Equipment displays an error code like “EEE XXX” followed by a number, try pressing the ON/STANDBY key to shut off the oximeter completely, then press the key again to turn it back on. Also, if the error code is “EEE 529 or 729”, make sure the SUPPLY VOLTAGE SELECTOR switch on the rear panel is set to the correct voltage for your location. This error can occur when the battery discharges to a critically low level.