Aqmos Water Hammer / Rapid Valve Operation

Softener causes banging or water hammer noises in pipes during regeneration

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

High water pressure, Rapid closing of valve ports, Lack of water hammer arrestors, Long rigid pipe runs without cushioning

How to Fix / Troubleshooting

Safety: Be cautious when adjusting pressure regulators.

  • Measure pressure: Use a gauge to check house water pressure. If above manufacturer recommendations (often 5 bar), adjust or install a pressure reducing valve.
  • Install hammer arrestors: Fit water hammer arrestors near the softener or at problem fixtures to absorb shock.
  • Secure piping: Ensure pipes around the Aqmos unit are properly clipped and supported to reduce movement.
  • Check valve operation: If hammering is extreme, the valve may be slamming shut due to internal wear. Inspect and replace seals or the valve head if necessary.
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Repair Difficulty

Medium 3/5
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