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    Tripping RCD

    Although similar to the Tripping RCBO thread, which I have read and tried to follow (I am a mechanical engineer, not an electrician!) this problem concerns a RCD that trips at apparently random times, usually when there is little being demanded eg in the middle of the night or in afternoon long...
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    Worchester combi oil boiler 'goes to sleep'

    I have a Worchester Heatslave combi oil boiler linked to CH system. Each radiator has a TRV. Towel rail has no TRV. No room thermostat. I found that after firing for a while and presumably reaching the set water temperature the firing stops and the pump switches off. With the pump off, the water...
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    Connecting a roomstat to combi boiler controller

    I have a combi, heating a small single storey cottage. All rads have TRVs. When the rooms are up to temp, the boiler and pump switches off. When rooms cool down again the system does not sense this and does not fire-up again (seems to have gone to sleep!). My theory is that the cool water is...
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    Will modern syphon be ok to replace one in old cistern?

    Hi, An old cistern (at least 10 years) has been moved and fitted without the overflow being connected! Not by me of course! I am looking for the best way of resolving this. Fitting a 'normal' outlet pipe through the wall is not possible. As I understand it, the modern syphon (with internal...
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