Efficiency reading incorrect NET efficiency selected.
Readings are erratic when
working on oil fired equip-
ment.
One or all of the following
parameters; NOx, Ratio, CO
air free, excess air, and effi-
ciency read and print dash-
es.
Pressure prints as “N/A” on
my combustion analysis print
out.
Battery will not charge or
hold a charge.
Beeping noise heard during
charging.
Analyzer won’t turn off
Appendix E: ERROR CODES & TROUBLESHOOTING (Continued)
Appendix E: ERROR CODES & TROUBLESHOOTING
The 714 analyzer will display certain codes to let you know of a malfunction.
*Sensor replacement requires calibration gas.
Code
Displayed
Code Definition Possible Causes Corrective Action
Flo
Err
Pump not drawing sample at
correct flow rate.
Blockage / kink in flue probe
hose.
Dirty or blocked filter(s).
Worn pump.
Check and rectify.
Replace filter(s).
Return to TPI for service.
InIt
O2
Err
Oxygen sensor failed to initialize
Flue probe connected to 714
prior to power up.
714 did not purge completely
from last sample.
Worn or defective oxygen
sensor.
Disconnect probe and
restart.
Purge for 20 minutes and
restart.
Return to TPI for sensor
replacement or install new
sensor.*
Try manually initializing the
sensor. See Appendix G.
InIt
CO
Err
Carbon monoxide sensor
failed to initialize.
Flue probe connected to 714
prior to power up.
714 did not purge completely
from last sample.
Worn or defective carbon
monoxide sensor.
Disconnect probe and
restart.
Purge for 20 minutes and
restart.
Return to TPI for sensor
replacement or install new
sensor.*
Try manually initializing the
sensor. See Appendix G.
InIt
NO
Err
Nitric oxide sensor failed to
initialize.
Flue probe connected to 714
prior to power up.
714 did not purge completely
from last sample.
Worn or defective carbon
monoxide sensor.
Disconnect probe and
restart.
Purge for 20 minutes and
restart.
Return to TPI for sensor
replacement or install new
sensor.*
Try manually initializing the
sensor. See Appendix G.
Lo
bat
Low battery.
Battery needs to be charged.
Charge or replace battery.
oFL
Overflow indication. The temperature or pressure being
measured is outside the
maximum measurement
capability.
Temperature or pressure
being measured is too high
or low.
Remove temperature or
pressure source.