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    Ravenheat CSI 85 Pump running intermittently day and night

    I have a problem with a Ravenheat CSI 85 (26 months old) which intermittently runs the pump even when i have not requested DHW / CH. It can come on anytime during the day or night stays on from between two and twenty minutes then switches off. The boiler does not try to light and other than...
  2. L

    Ravenheat CSI 85 no DHW unless CH on.

    I have a problem with a Ravenheat CSI 85 (18 months old) which will only give DHW when the CH is on. If turned to DHW mode the boiler will not fire. I have checked diverter valve which is operating microswitch ok when hot water tap is running and also checked that microswitch works and...
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