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  1. D

    mysom midas si

    managed to download manual for boiler today!looked at flow diagrams what i think is happening is the hot water has a secondary heat exchanger which keeps a small amount of water hot for instant use but when it cools it makes hot water pump, to reheat it but it doesnt tell for how long it should...
  2. D

    mysom midas si

    thanks for quick reply kirkgas/agile yes still having problems boiler is pretty complicated.worked out central heating pump does switch off .but rads still hot as if still getting supply, found that hw pump led lights and pump runs as if something is requesting hot water but no taps on , if you...
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    mysom midas si

    can anyone help im after a manual for my boiler? the led's must be there for a reason, are they to fault find? problem being central heating pump has mind of its own, when switch off with timer switch is ok( pump doesnt run) but when hot tap switched on both pumps run you get hot water :roll...
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    myson midas si

    to be honest never had too much trouble with boiler did ch pump about 3 years ago and been fine till now .heard loud bang from boiler then had no hot water or ch so had a quick look found if i turn electric off to boiler and restarted it worked fine for a day, timer switched turned off ch at...
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