Page 12 of 25
Page 13 of 25
MAN.600.REVF.07012015
Troubleshooting
High oxygen readings/low
pollutant readings
Leak
Loose connection
Verify all fittings are leak free
Defective peristaltic pump tubing
Replace tubing
Broken or leaking heat exchanger
Remove heat exchanger and replace if
broken or repair (replace O-Ring) if leaking.
‘Cool’ light is not Illuminated
Ambient temperature too high flow
rate/ water content too high
Failed peltier element
Reduce the ambient temperature
(Increase ventilation or relocate cooler)
Lower the flow rate through the cooler and
observe the results. If condition corrects
itself, consult the factory for further trouble
-
shooting
Measure resistance between the red &
black peltier leads. A failed peltier element
will read high resistance or ‘Open’
Consult wiring diagram for wire location
details