Troubleshooting – Lumiscope 2216 User Manual
Page 8

8
Troubleshooting:
Symptom:
Checklist:
Solution:
No response
Is battery dead? 
Is battery in place 
properly?
Change battery.
Check orientation of 
battery.
Battery symbol 
on screen
Low battery
Change battery.
“Lo” on screen 
(temperature is 
below 89.6°F or 
32.0°C)
Has the ther-
mometer been 
positioned 
correctly for a 
reading?
Follow instruction 
manual for correct 
positioning.
“Hi” on screen 
(temperature is 
above 109.3°F 
or 42.9°C)
Is probe cover 
new?
Change probe cover.
“ErrE” on 
screen
Thermometer is 
outside of oper-
ating tempera-
ture range.
Allow thermometer 
to acclimate to room 
temperature.
“ErrU”
Doesn’t measure 
after pressing 
measure button.
Follow instruction 
manual for correct 
operating procedure.
“ErrH”
Errors detected 
during self-
check.
Contact Repair 
Department at 
1-800-672-8293
