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Lo P1 Error on Thermoflex 900/1400/2500 Chiller
Issue:
Environment:
• ThermoFlex 900
• ThermoFlex 1400
• ThermoFlex 2500
Resolution:
Prerequisite: It has been confirmed that the correct voltage is applied: 115V for a ThermoFlex 900 or 1400; 220V for a
ThermoFlex 2500 chiller.
If the Thermoflex 900/1400/2500 chillers displays a "Lo P1" error on the front LCD display, it is possible that air is
trapped at the pressure sensor or the pump is cavitating.
Change the Lo P1 pressure setting to 3psi and the delay to 30s. See pages 26-27 of the ThermoFlex Operators Manual
linked here:
U00933 - Rev. 06/01/07 - ThermoFlex Installation, Operation and Basic
steps on how to navigate the Setup Loop to make these changes.
Observe if water flows into the reservoir before the 'Lo P1" error is displayed.
If water is flowing into the reservoir, follow steps 1-4 to attempt to release the trapped air or debris in the pressure
transducer.
If NO water is flowing into the reservoir, follow steps 5-8 to remove trapped air in the pump head or prime the pump.
NOTE: Before proceeding, toggle the rocker switch at the back of the chiller to the off position and unplug the
chiller from the wall outlet.
https://knowledge1.thermofisher.com/Trace_Elemental_Analysis/TEA_Accessories/Chiller/ThermoFlex_Chiller_Knowledge/Lo...
Maintenance, excerpt to follow, for
Updated: Mon, 15 Jul 2024 10:00:59 GMT
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Related Manuals for Thermo Scientific ThermoFlex 900
Summary of Contents for Thermo Scientific ThermoFlex 900
- Page 1 • ThermoFlex 2500 Resolution: Prerequisite: It has been confirmed that the correct voltage is applied: 115V for a ThermoFlex 900 or 1400; 220V for a ThermoFlex 2500 chiller. If the Thermoflex 900/1400/2500 chillers displays a “Lo P1” error on the front LCD display, it is possible that air is trapped at the pressure sensor or the pump is cavitating.
- Page 2 1) Remove the Right Side Panel by referencing the steps below or video linked here: How to Remove the Cover on a ThermoFlex 900 / 1400 / 2500 Chiller. a) Use a Philips head screwdriver to remove the five #6-32 x 1/4" screws indicated in the illustrations below.
- Page 3 https://knowledge1.thermofisher.com/Trace_Elemental_Analysis/TEA_Accessories/Chiller/ThermoFlex_Chiller_Knowledge/Lo… Updated: Mon, 15 Jul 2024 10:00:59 GMT Powered by...
- Page 4 4) Press on the Schrader port core to ensure fluid is coming out https://knowledge1.thermofisher.com/Trace_Elemental_Analysis/TEA_Accessories/Chiller/ThermoFlex_Chiller_Knowledge/Lo… Updated: Mon, 15 Jul 2024 10:00:59 GMT Powered by...
- Page 5 https://knowledge1.thermofisher.com/Trace_Elemental_Analysis/TEA_Accessories/Chiller/ThermoFlex_Chiller_Knowledge/Lo… Updated: Mon, 15 Jul 2024 10:00:59 GMT Powered by...
- Page 6 5) Reconnect the Process Pressure Transducer followed by the cable and confirm that the “Lo P1” error no longer occurs. If the problem is not resolved, then replace the Pressure Transducer using this knowledge article as a guide to do so: Pressure Transducer Replacement.
- Page 7 b) Slowly loosen the nut, circled below, until fluid is coming out but take care not to fully remove the nut. If the nut is fully removed, install and tighten as quickly as possible. https://knowledge1.thermofisher.com/Trace_Elemental_Analysis/TEA_Accessories/Chiller/ThermoFlex_Chiller_Knowledge/Lo… Updated: Mon, 15 Jul 2024 10:00:59 GMT Powered by...
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