Westinghouse Excessive Vibration / Imbalance

Generator vibrates excessively, causing the enclosure to rattle

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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, deteriorated vibration isolators, misaligned engine-alternator coupling, unbalanced cooling fan

How to Fix / Troubleshooting

Safety first: Turn controller to OFF, open main AC breaker, and disconnect negative battery cable.

  • Check base mounting: Verify that the generator base is securely fastened to its concrete pad or mounting frame.
  • Inspect vibration isolators: Look at the rubber isolators between the engine/alternator and base. Replace any that are cracked, collapsed, or oil-soaked.
  • Tighten hardware: Tighten loose enclosure panels and brackets that may be amplifying vibration.

If vibration remains severe, a technician should check coupling alignment and rotating component balance.

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Repair Difficulty

Medium 3/5

Required Part

Vibration Isolator Mounts
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