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how can i fix my ferroli optima 901?

the hot water keeps going hot then cold every minte

Mr nash
September 2007
FerroliHeating, Home Heating SystemsHot Water Cold
i have just found the problem with my optima 901 - the printed computer board (pcb) has a broken relay. its around £150 for the replacement part. try this web site http://www.mjtcontrols.co.uk/Appliance_Type3.aspx?Manufacture_ID=31&Appliance_Type=Gas+Boiler
hope this helps?

matt.b
October 2007

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