Pneumatech PHM Series

Questions and Answers

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Jennifer GonzalesAug 15, 2025
How to troubleshoot elevated dewpoint in Pneumatech PHM Other?
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  Russell EdwardsAug 15, 2025
  If you notice an elevated dewpoint in your Pneumatech Other, it could be due to several reasons. First, ensure the purge pressure is set to the recommended level. If the inlet pressure is low, recalculate the purge pressure setting from the chart. Excess moisture carryover can also cause this issue, so inspect the prefilter element and drains at both the prefilter and afterfilter. Also check aftercooler operation if the inlet temperature is too high. Finally, verify that the total output of the compressors isn't exceeding the dryer's capacity. In addition, depressurize dryer and inspect desiccant. Recalibrate probe if the dewpoint monitor is out of calibration.
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Erika ReynoldsAug 18, 2025
What to do if Pneumatech PHM has high back pressure on regenerating tower?
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  Jamie VillarrealAug 18, 2025
  If your Pneumatech Other exhibits high back pressure during tower regeneration, the muffler might be plugged; in this case, replace the mufflers. Leaking check valves can also cause this; repair or replace any faulty check valves. Excess purge flow is another possibility; check and reset the purge pressure. Additionally, inspect the purge exhaust piping for restrictions; remove any obstructions or replace the piping with a larger size. Finally, you should check purge calibration, plot and reset in case of too high purge.
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ybrownAug 21, 2025
Why is there a high pressure drop in my Pneumatech PHM Other?
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  Cheryl MyersAug 21, 2025
  If you're experiencing a high pressure drop in your Pneumatech Other, start by replacing the desiccant retainer screens, as they may be plugged. Check the inlet flow conditions to ensure there's no excess flow. Also, check and reset the purge pressure if the purge flow is too high. If the purge valve stays open, check the repressurizing solenoid valve, and repair or replace it if necessary and check timer.
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Logan VillanuevaAug 25, 2025
Why is there excessive flow through mufflers in Pneumatech PHM Other?
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  wellsnicholasAug 25, 2025
  If you're experiencing excessive flow through the mufflers in your Pneumatech Other, it could be due to a few reasons. Start by checking the valves for leaks and repair or replace them. Also, check the purge solenoid and valve. Repair or replace faulty purge valve or solenoid. Check repressurizing solenoid and valve. Repair or replace faulty repressurizing valve or solenoid.
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Elizabeth RuizAug 28, 2025
What causes a Pneumatech PHM dryer to fail to purge?
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  David BryanAug 28, 2025
  If your Pneumatech Other fails to purge, start by cleaning the orifice plate, as it may be plugged. If the purge valve fails to open, see F3. If the purge valve is closed, reset the proper purge pressure. Also, inspect the purge check valve and replace it if necessary.
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sgarciaAug 31, 2025
What to do if there is no gas flow through the Pneumatech PHM?
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  Mary TaylorAug 31, 2025
  If there is no gas flow through your Pneumatech Other, it is possible that both inlet valves are closed due to low inlet pressure. To resolve this, manually open the inlet valve by turning the shaft or the ON actuator.
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isaacthompsonSep 4, 2025
Why does the tower not pressurize fully in my Pneumatech PHM Other?
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  William PayneSep 4, 2025
  If the tower on your Pneumatech Other does not pressurize fully, it could be due to low inlet pressure; calibrate and plot purge pressure and reset. Another cause could be that the purge pressure is too low, so reset the proper purge pressure. Additionally, the repressurizing period might be too short, so check the timer sequence of operation.
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Kristina LangSep 7, 2025
What causes the failure to switch alarm light in Pneumatech PHM Other?
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  Jacob SpearsSep 7, 2025
  If the failure to switch alarm light occurs on your Pneumatech Other, check the pilot air solenoid valve and repair if necessary. If there is a faulty timer, replace the timer. Clean or replace the pilot filter element if there is insufficient pilot air pressure. Finally, repair or replace the pilot air cylinder if the cylinder is leaking or seized up.
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tconnerSep 12, 2025
Why has the moisture indicator color turned translucent in my Pneumatech PHM Other?
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  Gloria TaylorSep 12, 2025
  If the moisture indicator color has turned translucent (wet conditions) in your Pneumatech Other, it could be because the bleed valve is closed. Open the bleed valve to allow a small amount of air to constantly flow through the gel.