Lynford

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About Lynford

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  1. Thanks all. Curiouser and curiouser ! I’ll do the TRV checks, and make sure the LS valves are open, thanks Jeremy. I did have a thought. Where terminal 3 was broken within the heat pump, and I’ve put a connector block between what went in the two sides - You mentioned that #3 is internally linked to #13. Will I need to recreate that link as I have effectively taken the terminal block out of the loop for that terminal (#3) Thanks again, Lyndon
  2. Evening gents, I nipped up there on the way home from somewhere this afternoon. Gutted to find that the pumps were pointing in the correct directions - It looks like the head of the one on the return leg had been switched around for aesthetic / wiring purposes, leaving the body in the correct orientation. The live of both pumps was into #13 of the attached picture. Should I be waiting for the Lockshield on the rad to be replaced before going any further, or would this just block the one rad off while allowing the rest of the system to function normally ? Does anyone know if Carrier do domestic callouts, and if they would deal with Kingspan units as they actually made them ? Travelling up there to implement the brilliant info from here isn't the easiest way of doing things ! Cheers, Lyndon
  3. Like this (please excuse the technical (??!!) drawing.....)
  4. Thanks chaps. Disconnect the the one in the return leg I’d imagine ? If that works, whip it out and put it in the other way around ?
  5. So obvious now you’ve pointed it out Peter ! The two drops with the pumps on had an F and an R written on the wall behind them in pencil, so I’m assuming they are Flow & Return. Next time up I’ll go in the loft and trace the pipes from the ASHP into that cupboard. If they are what I think, then yeah the pumps look like they are backing against each other. I just don’t see how we ever got any heat at all. Cheers.
  6. Thanks gents. @JSHarris - Jeremy, do you think the shut down (maybe) lockshield valve could be to blame ? I’m glad that these issues seem to link (the flow maybe being restricted and the ‘case thermostat’ error). @PeterW - I’m home now so can’t see, I’ll certainly have a look next time. I have no idea about these systems, as you can tell, but I couldn’t understand why there are two pumps. One is on the flow, nearest the wall and one is on the return. They had these changed recently, so that person / firm may have thought there was an issue before. There were however two originally. I’ll deffo check to see where they are wired to though. Do you know how they should be set, and are they set actually on the pumps themselves ? ta, Lyndon
  7. Afternoon gents, Been back up there today, and I’m getting more confused ! On the pressure / TRV side of things - I was really disappointed to find that all the TRVs were almost wide open. Opened them right up and started the system, started getting some heat in the rads but never much really and then the ASHP stopped. There was no fault on the diagnostic unit, but the same leds as yesterday on the pcb withing the pump. Then its pointed out to me that a lockshield valves on one of the rads is broken (by a plumber when trying to fix a leak). The machined down part on the top has been sheared off, and I don’t know if it’s fully open or fully closed - If there was a leak I’d suggest fully closed.........could this be the flow restriction and therefore the cause of high pressure ? Fact is that this will need changing before I go further, just to eliminate it. On a different route, when the pump stopped I had the same leds on the pcb board as before. This time I knew to press SW800 to drill down further. This gave me D805 on, but that’s always on, and D802 flashing. According to the manual my FIL has (which as discussed earlier may or may not be accurate), this then points to ‘Case thermostat operation’ Anyone have any idea what this is, maybe it’s a red herring ? I think we need the lockshield valve changed before I move on. As ever, thanks for any help. Cheers.
  8. Yep, I reckon I need one after today ! @joe90, thanks for the number. I think I might be using it !
  9. Thanks Jeremy. I can’t help but think life would be a lot easier with a command unit. Unfortunately they seem to be like rocking horse **** !
  10. Gotcha, thanks Jeremy. The thing that confused me was that the error I got was before pressing SW800 (and I didn’t realise I needed to press the button to get another message) Your experience plus the lack of a flashing LED on the board / diagnostic box makes perfect sense. I think I’ll go up there again today to see what happens with the TRVs open, and if it faults out I can press SW800 for possibly more info. Thanks for for bearing with me, Cheers.
  11. Jeremy, I was just looking through the manual to try and learn how to manage to interpret the LED faults. It says about having Display 1 & Display 2 >> I read my fault as being something to do with the compressor or in that section anyway ? Then I’d need to press Sw800 to drill down further ? Off Off On Off On On Or am I miles off the mark ? Sorry for all the questions !
  12. All the rads appeared to be getting the same amount of heat. I think this has even been put in since they moved in, but I will ask. Cheers.
  13. Lovely, thanks chaps. We’ll see what happens with the TRVs open. I’ve had help on forums before but some of you people are different level. Cheers.
  14. Again, thanks chaps. Oh yeah, it’s got everything Peter..........bar the ability to heat the place !