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Recent content by Peter Laing

  1. P

    Hot water staying on all night despite controller being off

    Hello again and thanks for all your suggestions and advice. I think the problem is now cured. Basically, I took the "box" off the front of both two port valves and tried to move the spindles on the valve with pliers - the heating one moved very freely, but the hot water one was much harder to...
  2. P

    Hot water staying on all night despite controller being off

    Thanks Gasmk1 - makes sense now you've explained it!
  3. P

    Hot water staying on all night despite controller being off

    Hi, I'm still a bit confused by what you mean by 2 port valves, but if you mean the two electric valves (one for heating, one for hot water), they're Drayton Zone Valve Actuator, Actuator Code ZA5
  4. P

    Hot water staying on all night despite controller being off

    Thanks daWilko - can you explain this to me in a little more detail please? Which valve is sticky and how would this make the system run all night despite the controller being off?
  5. P

    Hot water staying on all night despite controller being off

    Thanks Simon - where would I find this two port valve? Are they easy/expensive to replace?
  6. P

    Hot water staying on all night despite controller being off

    Good Morning All, Further to my previous post about my pump running all night, I've now done some further investigation at 3am this morning and realised it's different than I originally thought. We have a Glow-worm Ultracom 30hxi boiler that feeds our central heating and hot water. It’s...
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    Central Heating pump on 24/7 and getting hot

    After some more investigation last night, I've realised things aren't quite as they seemed in my original post. I'm therefore going to close this post and start afresh.
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    Central Heating pump on 24/7 and getting hot

    Thanks for the prompt response steadyon. I do have two separate motorised valves that sit just below the pump, but I don't know what the auto bypass is or looks like - or how it can go wrong?
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    Central Heating pump on 24/7 and getting hot

    Hello again – second post, but another plumbing problem – this time about our central heating. We have a Glow-worm Ultracom 30hxi boiler that feeds our central heating and hot water. It’s controlled by a Drayton Lifestyle controller. The pump is a Grundfos Type UPS 15-60 130 Part number...
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