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Dimplex A-Class Heat Pump A6M - Zone Heating / Thermostat Problem

  • 21-03-2018 11:55am
    #1
    w/s/p/c/
    Registered Users, Registered Users 2 Posts: 468 ✭✭


    MOD NOTE: I am copying this from the P&H forum to Electrical. Might be more suited in Electrical.

    [font=Arial","sans-serif]Hi all,[/font]

    [font=Arial","sans-serif] [/font]

    [font=Arial","sans-serif]Just wondering if anyone could provide any thoughts, feedback or assistance that would be great, bit of a long story but hopefully somebody may have experienced this in the past.[/font]

    [font=Arial","sans-serif] [/font]

    [font=Arial","sans-serif]I am based in Dublin. The unit we have heating the house is the Dimplex A-Class Heat Pump A6M. It is a new build house and am only living in it the past few months.[/font]

    [font=Arial","sans-serif] [/font]

    [font=Arial","sans-serif]Heating system has been working perfectly since I moved in. On Thursday last week Icame home from work to find the control panel (located downstairs) displaying a message – “Network Refreshing – Please wait” and also an error code of F69, and the heating was not working in the whole house. The following day we rang Dimplex to report the error and they said the error message indicated it was a communications problem and they would send an engineer out to us. Unfortunately he didn’t arrive out until 5:30pm, and after some investigation discovered the problem was that a wire had been cut somewhere (he didn’t say where) and so he did a temporary fix and ran a length of cable from the tank in the hot press, out the back bedroom window, and down to the fan unit in the back garden.[/font]

    [font=Arial","sans-serif] [/font]

    [font=Arial","sans-serif]Once he did this the control panel came back online and the heating started working. He told us to contact the builders (as they are still on site) and get them to come look at it on Monday. He didn’t seem prepared to do anymore of a fix than that as it was late on a Friday evening.  By the evening time we discovered that the heating upstairs had not come back on at all, although downstairs was working perfectly. We have a thermostat for the upstairs in one of the bedrooms but no matter what temp we set that at the radiators stayed cold.[/font]

    [font=Arial","sans-serif] [/font]

    [font=Arial","sans-serif]On Monday we contacted the site foreman and he said he would send round an electrician to have a look. The electrician came on Wednesday this week and discovered more about the sliced wire. Last Thursday (when all of this started) we were having our carpets installed and while the carpet layer was putting carpet in the hot press it appears he accidentally sliced a wire. The electrician said he could reconnect the wire but that Dimplex didn’t usually like them doing that and would probably advise to install a whole new cable, which would involve ripping up carpets, putting holes in walls, ceilings etc – which obviously sounded like a nightmare job. We asked him to do the simpler job of reconnecting the wire, which he did and again the control panel came back online downstairs, the heating kicked in downstairs, but still nothing upstairs.[/font]

    [font=Arial","sans-serif] [/font]

    [font=Arial","sans-serif]The electrician was able to tell us that it seems the upstairs thermostat is not calling for heat, and there seems to be a problem between the thermostat and the valve communicating to each other. He said he doesn’t know much about these heating systems so couldn’t offer us anymore advice.[/font]

    [font=Arial","sans-serif] [/font]

    [font=Arial","sans-serif]Just wondering has anyone had the problem where a thermostat is not calling for the heat or has any suggestions on how to fix this issue?  Any advice is welcomed. [/font]

    [font=Arial","sans-serif] [/font]

    [font=Arial","sans-serif]Thanks[/font]


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