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  1. L

    Heatslave 20/25 oil combi boiler pump issue

    Oil boffin - just tried that and the boiler stayed on for much longer before switching off but alas did not deliver to rads. Thanks for all your help
  2. L

    Heatslave 20/25 oil combi boiler pump issue

    Thanks Bob
  3. L

    Heatslave 20/25 oil combi boiler pump issue

    Oilboffin -worcester Bosch heatslave 20/25 oil combi
  4. L

    Heatslave 20/25 oil combi boiler pump issue

    Terywookfit -the hot water thermostat on the boiler(?) Excuse my ignorance
  5. L

    Heatslave 20/25 oil combi boiler pump issue

    Yes but the thermostat isn't cutting in so the water just keeps heating continuously and the water pressure is building up when the boiler is on.
  6. L

    Heatslave 20/25 oil combi boiler pump issue

    hi, the heatslave boiler is firing up but no hot water getting to the rads. We've change the water pump but that hasn't solved the problem. It appears there is no power getting to the pump. Any ideas?
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