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Thread: Radiator balancing problems

  1. #21
    Automated Home Sr Member
    Join Date
    Jan 2016
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    Harrogate, North Yorks
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    93

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    Securitybyte

    Can I just ask how old the CH system is. Could your rads need flushing if they are quite a few years old. Have they got sludge in them and when the LSV's are almost shutdown is this restricting the flow somehow.

    Ian K.

  2. #22
    Automated Home Jr Member
    Join Date
    Jan 2016
    Posts
    18

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    Hi Ian

    I had the whole system (new boiler and rads) installed about 8 months ago. They're all hot on the bottom so I'm hoping there's nothing lurking in them :S

    Good thinking though..

    Thanks

  3. #23
    Automated Home Jr Member
    Join Date
    Jan 2016
    Posts
    18

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    Hi

    Just an update.

    I called the helpful Worcester technical support line this morning.

    I said about it switching off with error 349 when a cold radiator is switched on, and the fact that it doesn't seem to modulate low enough when only 3-4 radiators are switched on, resulting in status 204.

    She said it sounds like I need a Low Loss Header? Does anyone have any experience of these?

    I also asked about the integrated automatic bypass. She said it is very small and that I should have an additional one installed.

    Does this mean my system was installed wrongly?

    None of the old radiators had TRVs - I had a new boiler, new radiators / LSVs / and TRVs fitted to all radiators, and the Evohome installed, in one job. Should my installer have fitted an ABV when it was all installed? Is that not a regulation?

    Thanks!
    Last edited by Securitybyte; 5th March 2016 at 01:51 PM.

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