Baxi Outdoor Mechanical Noise / Fan or Compressor Mounting Fault

Outdoor unit very noisy during operation; rattling or grinding sounds

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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 outdoor fan blades or guard, Worn outdoor fan motor bearings, Loose compressor mounting bolts, Vibrating copper pipes touching casing

How to Fix / Troubleshooting

Safety: Isolate power before touching the outdoor unit.

Steps:

  • 1. Inspect fan guard and blades: Check for loose screws, bent guard, or damaged blades. Tighten screws and replace damaged parts.
  • 2. Check for contact points: Look for copper pipes or wires touching the metal casing and vibrating. Gently reposition and secure with clips or foam.
  • 3. Compressor mounts: With power off, gently rock the compressor. If it moves excessively, tighten or replace rubber mounts.
  • 4. Fan motor bearings: If the noise is a grinding or squealing from the fan, the motor bearings may be worn and the motor should be replaced.
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Repair Difficulty

Medium 3/5

Required Part

Outdoor Fan Motor
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