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  1. A

    Ferroli 701 Optima Water leak through 3 bar pressure valve

    the expansion vessel is probably at fault. no air in it.
  2. A

    Possible faulty mid position valve?

    Sure does. you can tell by actually removing the powerhead on top of the divertor valve. this will give you an indication if the powerhead has gone, siezed or the valve body itself has siezed. if its a midposition actuator(three connections) then the valve spindle should be in rest mode for hot...
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