Nonin 8500 Troubleshooting page 2

Location: Reverse (5 other batteries correct polarity)
#1 – Will power ON, Blinking Display HR and SPO2, will provide readings, but blink
#2 – Will power ON, Blinking Display HR and SPO2, will provide readings, but blink
#3 – Will power ON, Blinking Display HR and SPO2, will provide readings, but blink
#4 – Will power ON, Blinking Display HR and SPO2, will provide readings, but blink
#5 – Will power ON, Blinking Display HR and SPO2, will provide readings, but blink
#6 – Will power ON, Blinking Display HR and SPO2, will provide readings, but blink
* Any two batteries reversed grouped together, No Power (1 – 2 or 3 – 4 or 5 – 6)
* Any two batteries, not grouped together, will power ON, only dashes no readings.
* Three batteries reversed, no power, no indications.