Noisy Heat Exchanger

Noisy Heat Exchanger? Fault Finder for Heating Engineers and Plumbers

Noisy heat exchanger (‘kettling’ and/or banging)

Fault Fix
Magnetite / rust blockages in waterways Chemical cleanse system
Pump head failing (not at full capacity) replace pump head
Boiler control thermostat faulty (causing overheat stat to trip) replace thermostat

General ways to reduce boiler noise

  • Add Central heating inhibitor
  • Add a Boiler filter
  • Check the pump for seizure
  • Check for limescale – heat exchanger
  • Check for Air locks in the system
  • Check the system for leaks
  • Power Flush the heating system

Other Issues to check

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