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Mend Ariston Microgenus 11 24 MFFI Home Heating Systems

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Mend Ariston Microgenus 11 24 MFFI Boiler Heating Hot Water

hot water problem?

i have a ariston microgenus 11 24 mffi. when running hot tap at either full flow or reduced flow the boiler fires up for about ten seconds then goes off for about the same time then fires up for about ten seconds and repeats this continually.as a result we get warm water then goes cold then warm and repeats this continually. central heating works ok and makes no differance to D.H.W whatever heat setting it is at. i live in an area with very hard water. any help would be much appreciated.

graham macsween
March 2009
AristonAriston Microgenus 11 24 MFFIHeating, Home Heating SystemsBoiler Heating Hot Water
probably hot water heat exchanger scaled up

STE
March 2009

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