701

  1. B

    Ferroli 701 - Pressure Relief Valve passing?

    Hi All I have a Ferroli 701 Optima which leaks water through its CH 3 bar safety pressure relief valve. The water pressure on gauge NEVER goes above 1.2 bar though (with CH on or off). When i do put pressure in the PRV passes and it drop to zero over 10mins. The Pressure Gauge USED to go over...
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