Nibe Mechanical vibration / mounting fault

Loud humming or vibration from Nibe furnace during operation

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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

Loose mounting bolts, failing circulation pump bearings, compressor vibration transmitted to structure, missing anti‑vibration pads

How to Fix / Troubleshooting

Safety: Turn off power before tightening any mechanical fasteners. Beware of hot surfaces.

  • Check unit leveling: Ensure the Nibe furnace is level and firmly seated on its base. Adjust feet if provided.
  • Tighten panels and brackets: Tighten any loose screws on access panels, pipe clamps, and mounting brackets.
  • Inspect pumps: Listen near each circulation pump; a failing pump often makes a grinding or whining noise and may need replacement.
  • Add vibration isolation: Install rubber pads under the unit or flexible connectors on pipework to reduce transmitted vibration.
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Repair Difficulty

Medium 3/5

Required Part

Anti-Vibration Mounts
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