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Mend Ferroli Optimal 25C Boiler Gas Man

Ferolli optimal 25c timer off radiators still on ?

My boiler seems to be on all the time .british gas man changed programmer and it still does it . The only way I can get it to cool down is to turn radiator temp knob on boiler down and turn all trv ,s off but towel rad still heats

Robert
July 2014
FerroliFerroli Optimal 25CHeating, Home Heating SystemsBoiler Gas Man
It could be a zone valve faulty,the only way is to test where the boiler supply is coming from

toptrish
July 2014

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Ferroli 701Ferroli 77FFFerroli 901Ferroli Domicompact F30Ferroli DOMIcompact F30BFerroli DOMINA 90Ferroli f24bFerroli F30BFerroli FalconFerroli Falcon CombiFerroli HE31CFerroli ModenaFerroli Modena 80Ferroli Modena 80eFerroli Optima 901Ferroli Optimax 25Ferroli Optimax 25 CFerroli Optimax 31cFerroli Optimax HE 31 CFerroli Optimax HE 38C

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