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  1. G

    Modena 80 e

    Boiler locks out on both CH & DHW, sequence is; Demand heating .led 5 permanently on, led 4 permanently on, pump starts,fan fails to start, led 2 on boiler goes to lock out mode, 230v are not present at either fan connections,or at circuit board fan connections,any Ferroli enthusiasts out...
  2. G

    Balancing with TRVs

    Hi all how do you balance a heating system, with TRVs on the return side of the radiators. thanks in anticipation :oops:
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