How to Fix a Boiler Making a Banging Noise (Kettling)
Quick Answer
Descale the boiler, check the pump, and check the boiler pressure.
How to troubleshoot a Boiler Making a Banging Noise (Kettling)
A boiler making a banging noise (kettling) can indicate limescale buildup. This guide covers diagnosing and fixing the issue.
Step-by-Step Fix
- Check the boiler pressure is correct.
- Descale the boiler using a commercial descaler.
- Check the pump is functioning correctly.
- Check for air in the system by bleeding radiators.
- If the noise persists, call a Gas Safe engineer.
Common Error Codes
| Code | Meaning | Resolution |
|---|---|---|
| Kettling | Limescale buildup | Descale the boiler. |
| Pump noise | Faulty pump | Check the pump speed. |
Frequently Asked Questions
Why is my boiler making a banging noise?
Limescale buildup (kettling) or a faulty pump.
Can I descale my boiler myself?
This is a job for a Gas Safe engineer.