Recent content by ACL

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    Wet UFH pumps causing RCD tripping

    Thanks for that, I've been reading reviews and ordered the Megger DCM305E £220. Hopefully it will help to get to the bottom of my problem.
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    Wet UFH pumps causing RCD tripping

    Thank you by the way to all of you. Just being able to bounce things around has focused the mind.
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    Wet UFH pumps causing RCD tripping

    That's my next plan, however I have ovens on both sides of the CU so need to work out installing an RCBO without too much disruption to the customer.
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    Wet UFH pumps causing RCD tripping

    Yes all load MCBs switched off and tested at the CU. I've also contacted Hager to check on my findings.
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    Wet UFH pumps causing RCD tripping

    The initial tripping was intermittent and would happen overnight. The system would operate happily for 3-4 days then trip out. This led me to believe that a fault had developed on one or more of the heating components as the customer was turning off the 2 top floor heating system and no tripping...
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    Wet UFH pumps causing RCD tripping

    We don't listen to them, but customers will listen to the last person in the building unfortunately. It took a while but I finally convinced the customer and the plumber that the 100A RCD didn't need to be upgraded.
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    Wet UFH pumps causing RCD tripping

    You'd think that was the end of my responsibility but the plumber is pointing fingers. The bit that gets me is they spec'd and supplied the system then when it trips they say it's an electrical fault. They even sent a plumber in to check it, who told the customer the 100A MCB ( not an MCB an...
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    Wet UFH pumps causing RCD tripping

    True. Whilst the house was being second fixed, the ovens were not in and the UFH worked fine. It did work happily for about 4 weeks with the ovens and hob connected though. I'll isolate the ovens and hob then test.
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    Wet UFH pumps causing RCD tripping

    No leakage clamp meter as yet, any recommendations? There is no N link between the boiler and the UFH as the wiring centres use a 0v built in relay to send the demand signal. The remote Grundfos pumps and 2 port valves are controlled by the boiler spur, so I could separate the UFH and the...
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    Wet UFH pumps causing RCD tripping

    CU is Hager
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    Wet UFH pumps causing RCD tripping

    All neutrals are on the correct side of the board. All heating system is fed from the same RCD
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    Wet UFH pumps causing RCD tripping

    The RCD generally trips over night so other appliances are on but not being used. Forgot to mention this is a new build and all appliances are new. I will try to move to an RCBO to test.
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    Wet UFH pumps causing RCD tripping

    I was thinking about possible cumulative earth leakage, and I haven't tried disconnecting the other items to see if it works without them connected. RCD used as all wiring <50mm in walls and there are 25 wired Neostats within the property.
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    Wet UFH pumps causing RCD tripping

    I have a customer with a problem of RCD tripping caused by the wet UFH systems. There are 5 UFH areas each with a Wilo Para pump attached. Along with this there are 5 Grundfos pumps assisting the flow of water around the property. The System is setup with Heatmiser NeoStats wired through the...
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    Common sense is essential

    Common sense is essential
    • ACL
    • Profile post

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