worcester bosch HF 400 RSF whistles

elwood · 22 Jun 2005

Please help I have a 5yr old WBHF400RSF which sometimes whistles when I turn on the hot water (water is nice and hot) ANYBODY ANY IDEAS

andywolfie · 22 Jun 2005

without doubt its the gas/water heat exchanger,they sometimes do it and only on hw as it's only then it fires at full rate,best bet would be to replace it,or try flushing the system then adding an inhibitor.

elwood · 22 Jun 2005

ANDYWOLFIE,
thanks for the reply,
how do I flush out the system (do you mean the central heating system) and How do I add the inhibitor (any suggestion for which is best)

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worcester bosch HF 400 RSF whistles

elwood

andywolfie

elwood

DIYnot Local

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