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Mend Ferroli F30 Combi Heating Temperature

How can I fix my Ferroli F30 Combi. boiler?

If I turn on any hot water taps (including the shower) in the house, the water temperature keeps alternating between hot and cold!!!!
What could the problem be?
If anybody out there knows the answer, please tell me!!

Darin Ashman
March 2007
FerroliFerroli F30Heating, Home Heating SystemsCombi Heating Temperature
And always charge the boiler pressure when cold. You will not get an accurate charge pressure reading if the system has been running.

Gordon the Plumb.
March 2007
--how many rads you have is nothing to do with hot tap temp.-- --you should never fill a combi to 3 bar you will activate the prv, if you have 2 or 15 rads.--

fill the system to 1 - 1.5 bar max just don't let it drop below about 0.7 bar.

poss faulty dhw thermistor.



(don't take up plumbing)

hi-spec plumbing
March 2007
hi , have you checked your pressure, its a little dial on the boiler , it should be beteen 1.5 and 3 bar depending on how may rads you have, let me know what ths is at.

mark the tech
March 2007
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