Medium
Noises in CH system on Chaffoteaux Calydra 24 Green

Your boiler or radiators are making unusual sounds because there is trapped air in the system or the water pressure has dropped too low.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

Air presence in C.H. system or Insufficient pressure

DIY fix possible

Check the pressure gauge on the front of the boiler and top it up to 1.5 bar using the filling loop if it is too low.Carefully bleed your radiators using a radiator key to release any trapped air.Restart the boiler to see if the noises persist.

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