Slant/Fin Mechanical Vibration / Loose Components

Boiler vibrates or rattles loudly during operation

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Possible Causes

Loose blower or inducer mounting on Slant/Fin boiler, Unbalanced fan wheel, Loose burner assembly, Piping not properly supported

How to Fix / Troubleshooting

Safety: Turn off power before tightening any components.

Steps:

  • 1. Inspect inducer and blower: Check mounting screws and brackets; tighten any loose fasteners.
  • 2. Burner assembly: Ensure burner rack and manifold are securely fastened.
  • 3. Piping supports: Add or tighten pipe hangers to prevent resonance and rattling.

Professional help: If vibration persists, a technician should inspect for fan imbalance or motor bearing wear.

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Repair Difficulty

Easy 2/5

Required Part

Inducer Fan Assembly
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