Stern Engineering TUBULAR Series

Questions and Answers

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Crystal MiddletonAug 4, 2025
Why is the LED not flashing on my Stern Engineering Plumbing Product?
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  Sarah HernandezAug 4, 2025
  There could be several reasons why the LED in the sensor of your Stern Engineering Plumbing Product isn't flashing when hands are within range. It could be due to the range being too short or too long, requiring you to adjust the range accordingly. Alternatively, the battery might be completely drained and needs replacement. The unit might be in “Security Mode”. Also, the sensor might be picking up reflections from the washbasin or another object. Try to eliminate the cause of reflection.
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Brandon BrooksAug 9, 2025
How to fix continuous flashing sensor on Stern Engineering TUBULAR?
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  Samuel ThorntonAug 9, 2025
  If the sensor on your Stern Engineering Plumbing Product flashes continuously when hands are nearby, it likely indicates a low battery. The solution is to replace the battery.
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Laura WeberAug 13, 2025
What to do if LED flashes once on Stern Engineering TUBULAR?
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  Beth RodriguezAug 13, 2025
  If the LED in the sensor of your Stern Engineering Plumbing Product flashes once when hands are within range, it could be due to several reasons. There might be debris or scale in the solenoid, requiring you to unscrew it, pull out the plunger and spring, and clean them. Alternatively, the central orifice in the diaphragm might be plugged or the diaphragm is torn, in which case you should clean the orifice or replace the diaphragm. If the water supply pressure is higher than 8 bar, you should reduce it. If the water supply pressure is under 8 bars and yet the pressure in the faucet’s body is higher, shut off water supply and unscrew one of the flexible pipes in order to reduce the pressure that blocks the product.
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Carl LaneAug 19, 2025
What to do if the LED in the sensor does not flash once when user’s hands are within the sensor’s range for Stern Engineering Plumbing Product?
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  Anthony StevensSep 12, 2025
  If the LED in the sensor of your Stern Engineering Plumbing Product does not flash when hands are within range, it could be because the sensor is dirty or covered, requiring cleaning or removal of the obstruction. Another possibility is that the sensor is picking up reflections from the washbasin or another object; in this case, decrease the range or eliminate the cause of reflection.
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Robert RoyAug 25, 2025
Why does the sensor flash once on my Stern Engineering Plumbing Product?
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  Karen StoutAug 25, 2025
  If the sensor flashes once when your hands are within range of the Stern Engineering Plumbing Product, it could be due to debris or scale in the diaphragm. Try cleaning the orifice or replacing the diaphragm. Another cause might be disconnected or improperly connected connectors between the electronic unit and the sensor's range. Ensure these connectors are properly connected.
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Carla SmithAug 28, 2025
How to unclog filter or aerator on Stern Engineering TUBULAR Plumbing Product?
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  Bradley WoodwardAug 28, 2025
  If the filter or aerator of your Stern Engineering Plumbing Product is clogged, remove it, clean it, and then reinstall it.