Oakton Temp-16, Instruction Manual, Page: 23 / 32

19
20. TROUBLESHOOTING
Problem Cause Solution
Power on
but no
display Batteries not in
place or wrong
polarity. Insert batteries.
or re-insert
batteries in
correct polarity.
“OPEN”
display
on LCD Probe not
connected Make sure probe
is firmly
connected.
“Ur” or
“Or”
display
on LCD Measurement
over (Or) or
Under (Ur) range Ensure
temperature
taken is within
meter’s
specification.
Unstable
reading 1. Probe not
deep enough
in sample
2. Broken probe
1. Place probe
deeper in
sample.
2. Replace
probe.
Slow
response Dirty probe Clean probe