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heatmiser

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  1. C

    Heatmiser Neo Underfloor heating zone locked at set temp despite thermostat being switched off

    m having a bit of an issue that is proving difficult to resolve. For 2 years I have been having no problems with my setup. I have a 3 zone house. 1 radiator “zone” and two underfloor heating zones. Each zone has a neo V2 thermostat. Last couple of weeks when my kitchen zone heated up - it...
  2. Gawain

    Heatmiser neostat v2

    Hi guys/gals, Had a message from an old customer from my old firm whos having problems with their stat. They have 3 electric ufh using the same model and 2 work fine, but this one doesn't. She said my old boss has been back, replaced unit and still not working. Unit only shows room temp. Unit...
  3. T

    Heatmiser heating system issue. Online/on-site(£) help needed. Oscilloscope?

    Hi everyone We have a little problem with a heating system on one of the projects (quite big house in south Kensington) and we are looking for someone who might be able to help. I'll try to make it as short as possible. Heating system is based on heatmiser touch v2 thermostats sitting around...
  4. R

    Smart Heating System - Heatmiser or other?

    Hi all, I have a slightly mish-mash heating set up, in that downstairs I have wet underfloor heating with an individual thermostat per room, but upstairs it's a single thermostat for the entire floor with normal radiators with TRVs. I want to be able to control the temperature in each room...
  5. C

    Heatmiser UH8-RF advice

    I have upgraded from UH1-W to UH8-RF. The old UH1-W had five wires connecting DHW and DHW-Stat. I have connected the DHW-Stat cables to the UH8-RF HW port, but unaure what to do with L and N previously connected. Timer switches on, but the HW timer does not activate the boiler. Any advice?
  6. D

    UFH Heatmiser to Grant Vortex combi help

    Hi I have a heatmiser uh4 wiring centre and a grant vortex combi condensing oil boiler, doing the heat and HW in a small cottage, the room stats, pump and actuators are ok, but I need a bit of help with the connections to the boiler please, the connections at the burner plug are – 1 - sw live CH...
  7. M

    Heatmiser TM4 question

    Hello, I'm hoping someone can help me?! I have a Heatmiser TM4 in my home along with 2 Heatmiser DS1 V1 dial thermostats along with my Logic Combi ESP 30 boiler (whoa that was a mouthful!). When the TM4 is off next to the settings button there is another button on the screen labelled 'Edit'...
  8. B

    Heatmiser UF 8 fault

    have a heatmiser uf8 and originally used 5 outputs number 1-5, I then found output 1 would not work properly so i transferred the wiring to number 6 I have Neo air V2, so first i Disabled the failsafe on output 1 to prevent it hopefully from sending a boiler on signal because there would be no...
  9. E

    Heatmiser underfloor heating

    I’m scratching my head here , any reason the pump isn’t kicking in and valve when I turn on zone 1
  10. B

    Heatmiser UH3 troubleshooting

    Hi fellow electricians, Wondering if anyone out there can kindly help me out? I have a underfloor heating controlled by UH3 heatmiser. When thermostat control is activated, there is no boiler response and hence no heating. Has anyone come across a similar problem? Is it a relay fault within...
  11. L

    Heatmiser, user guide for dummies!!

    Hi, I've just moved into a new build and I can't figure out for the life of me how to work the heating. It's a Logic Combi ESP1 30 and there is a Heatmiser TM4 in the same room as the boiler. Then in the living room and bedroom there is a Heatmiser DS1 dial thingy which I also have no idea to...
  12. R

    Heatmiser UH8 volt free with a 230v switch wire boiler

    I haven't had the chance to install an UH8 before and it looks a cracking piece of kit. However I'm a little unsure on best place to get a Live from, to feed the Volt-free LS, with the LR going to boilers 230 switch. Take the UH8's main live or take the boilers? There's no valves at the moment...
  13. R

    NEST install on Heatmiser

    Hi. Customer has a Heatmiser UH8 with only 4 heating zones been used. Controlled by the slimline thermostat. looking at replacing the thermostat for 4 NEST and I’m an after a wiring diagram for the installation or guidance on installing the heat links to the UH8. Each zone has + A1 A2 - Y and B
  14. HappyHippyDad

    Understanding the Heatmiser thermostat..

    Morning.. I bought the Heatmiser PRT-N thermostat to replace my standard analog thermostat. My existing thermostat has a PL, SL, N. I believe I should have bought the PRT, not the PRT-N. :oops: From the pictures is it possible to use this thermostat as in the wiring diagram for picture 3...
  15. M

    Need help wiring a Heatmiser RF Switch for heating and hot water control.

    Hi All, Im not an electrician, but i like to do things myself if possible, so i'm here to ask for some help in wiring a new RF switch for controlling my central heating. I already have a heatmiser system that controls my underfloor heating downstairs, but my upstairs rads and hot water are not...
  16. kevyn

    Heatmiser UH8 Heat Enable/Boiler Enable Connections

    Hi This may have already been answered previously but here goes..... I am currently working on a heating system which has 3 loops of underfloor heating controlled by thermostats and through a Heatmiser UH8 panel. It also has a separate zone for radiators although this is not through the panel...
  17. O

    Underfloor heating

    Hi all I've recently fitted a underfloor heating system using heatmiser controls and a Worcester Bosch oil system boiler boiler. On the heatmiser wiring center I have an in and out boiler enable volt free, and at the boiler I have L N E . Please see attached photos. Thanks James
  18. O

    Heatmiser uh1

    Hi all I've recently fitted a underfloor heating system using heatmiser controls and a Worcester Bosch oil system boiler but I'm a bit unsure as to what connection to make to the boiler. On the heatmiser wiring center I have an in and out boiler enable volt free, and at the boiler I have L N E...
  19. rolyberkin

    Heatmiser Wireless System

    Hijacked a thread the other say which this is a follow on from which may make things easier, already had some good advice from @Leesparkykent which has resulted in my getting the plumber (my brother in law!) to agree to alter the alter the pipework so at least I am in with a fighting chance of...
  20. P

    How does Heatmiser control radiators ?

    I have a Boiler connected to a Megaflow and 6 Radiator Zones. I would like each zone to be individually controlled via a Heatmiser Solution. Keen to understand how each of the individual thermostats (Neo Stat) will tell each individual radiator valve to open and close deepening on the...

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