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    Changing the Water Pressure Sensor vaillant ecotec plus 831

    How easy are these to change - any tips or do's or donts I haven't changed one before
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    Fernox DS-40 my story - kettling

    I used this at the weekend and thought I would share my results Basics = kettling - we had heating but no hot water I have a vaillant ecotec plus 831 which is 5 years old, we had Home Energy Services come round and they said that the plate heat exchange was blocked Change the HE for a...
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    vaillant ecotec plus 831 Filter - is it easy to get to?

    I have a vaillant ecotec plus 831 and I would like to have a look at the canoe filter - Firstly, Do I need to drain the system to have a look at it - Im guessing yes Is it easy to get to - can I just undo it (left pipe beside pressure sensor) Thanks in advance O and whilst Im...
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    vaillant ecotec plus 831 kettling

    I know this is a common problem but Im after some advice. The boiler is 5 years old and we are in a hard water area. The main heat exchanger is kettling as we have changed the plate HE to no avail. I have used Fernox F5 and that helps but you can only get hot water for about 5 minutes on low...
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