AirSep AS-E - User Manual

Questions and Answers

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Matthew GardnerAug 18, 2025
What to do if AirSep Portable Generator operates continuously but oxygen pressure is low?
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  Frank TaylorAug 18, 2025
  If your AirSep Portable Generator is operating continuously but the oxygen pressure at the specified concentration is lower than expected, it could be due to a few reasons. First, check for adequate feed air pressure by ensuring the feed air valves are fully open and the lines are not obstructed. Second, the cycle pressure might be inadequate, in which case you should adjust or replace the feed air regulator. Finally, the oxygen demand might exceed the generator's capacity, so check your oxygen usage and inspect the unit, oxygen hoses, and piping for leaks.
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James ReedAug 21, 2025
How to fix a loud chattering valve noise in AirSep Portable Generator?
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  Deanna JohnsonAug 21, 2025
  If the valve on your AirSep Portable Generator is making a loud “chattering” noise, it could be due to several reasons. Check the power supply for low voltage. Also, low voltage PLC output can cause this issue, so consider replacing the PLC. Additionally, a dirty valve, worn valve core, or a defective EMI filter can be the cause. In these cases, you should clean or rebuild the valve, or replace the EMI filter, respectively.
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Nancy AndersonAug 25, 2025
How to troubleshoot an AirSep Portable Generator that does not cycle?
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  Cynthia MannAug 25, 2025
  If the oxygen generator is not cycling, ensure the unit is plugged into a working wall outlet. Check if the circuit breaker has tripped and reset it if necessary. Verify that the oxygen generator is switched on. If the oxygen generator is in standby mode, it will start running once the pressure in the oxygen receiver goes below the low setpoint for standby mode.
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Shelly BassAug 27, 2025
What to do if AirSep Portable Generator filter drain valve energizes but no air exhausts?
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  laurenjonesAug 27, 2025
  If the filter drain valve on your AirSep Portable Generator energizes with the unit pressurized, but no air exhausts, it could be due to a drain valve obstructed or stuck in the closed position, so you should clean or replace the valve. Another possibility is that the drain tubing is obstructed or pinched, in which case you should clean or replace the tubing.
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juareztimothyAug 30, 2025
Why is my AirSep Portable Generator outputting particulates (dusting)?
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  Patrick WashingtonAug 30, 2025
  If the AirSep Portable Generator is outputting particulates (dusting), it could be due to an improperly set feed air regulator, so adjust it. Another cause could be contaminated molecular sieve in adsorbers. Also, the system might not be cycling properly, so check and repair or replace any faulty wiring and/or the PLC.
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oscar33Sep 2, 2025
Why does the feed air regulator leak in my AirSep Portable Generator?
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  elizabeth56Sep 2, 2025
  If the feed air regulator on your AirSep Portable Generator is leaking out of the bleed orifice, it could be due to a stuck feed air regulator main valve assembly, so you should clean and lubricate the main regulator valve assembly. Alternatively, the main valve assembly seat could be defective, requiring you to rebuild or replace the regulator.
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Bradley CarrollSep 5, 2025
What causes the relief valves to open on an AirSep Portable Generator?
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  Christopher JarvisSep 5, 2025
  If the oxygen generator relief valves on your AirSep Portable Generator are opening, it could be because the cycle pressure exceeds the maximum pressure specified, so adjust the feed air regulator. It could also be due to a stuck feed air regulator main valve assembly, in which case you should rebuild or replace the regulator. Finally, the relief valve itself might be defective and need replacement.
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Mrs. Susan RussellSep 8, 2025
What to do if AirSep Portable Generator filter drain valve remains open?
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  Andrea SmithSep 8, 2025
  If the filter drain valve on your AirSep Portable Generator remains open and is not energized, it could be because the valve is obstructed, so clean or replace it.
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Melissa ThompsonSep 12, 2025
Why doesn't the filter drain valve energize on my AirSep Portable Generator?
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  Elizabeth MurilloSep 12, 2025
  If the filter drain valve on your AirSep Portable Generator does not energize, it could be due to a loose or defective wire to the valve, so repair or replace the wire. It could also be caused by a defective valve coil or a valve core stuck in the closed position, so replace the valve. Finally, a defective PLC with no power output to the valve could be the cause, requiring PLC replacement.
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anthony27Nov 14, 2025
Why is the oxygen concentration below specified concentration in my AirSep Portable Generator?
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  James TaylorNov 14, 2025
  If your AirSep Portable Generator's oxygen concentration is below the specified level (50–70%), there could be several reasons: * The oxygen sample flow line might be obstructed, so ensure all valves on the oxygen sample line to the concentration monitoring board are open and that the oxygen regulator on the oxygen sample line is set at ~6 psig. * If this happens during initial start-up or after an extended shutdown, start the unit as described in Chapter 6. * A momentary power loss can also cause this, so vent low concentration oxygen from the system as described in Chapter 6. * Check for inadequate feed air by inspecting air lines for obstructions or adjusting/replacing the feed air regulator. * Valves may not be cycling properly, so replace or rebuild them as necessary. * T...