Delta Dore Dual Channel Wireless Controller – The Rolls Royce of controls (at a fraction of the cost).

Hi, this blog post will be a little different from my normal post as it will focus on the benefits of one product rather than a general topic but I feel this is such an important development that it is worthy of it’s own write-up.

So, what we have here we belive is a significant addition to an already great range that trumps all of the other controls manufacturers as it offers something that they don’t, at a price they cannot match with quality and support that can’t be beaten.

The Delta Dore TYBOX 827 W RF

Catchy name it may not be but what it lacks in name it makes up in features –

  • It is a 2 channel wireless Programmer with built-in thermostat.

Still not interested?

  • This product replaces the need for separate hot water and heating time clocks/controllers/programmers with one WIRELESS programmer.
  • This means less products to buy (they are all in one) AND less wiring to do (it is wireless and again all in one).
Delta Dore TYBOX 827 W RF System Diagram

Basic wiring digram using TYBOX 827 WRF


Still reading? Good as here are more of the Benefits:

  • 2 in 1 Programmer thermostat that offers all functions to control program a boiler
  • Easy to install: The industry standard wallplate allows for quick and simple replacement, clear wiring diagrams make new installs easy. The room unit can be
  • free standing= no wires, no screws, no fuss. Control your boiler anywhere in the house!
  • Programming by steps of quarter hour, half hour or hour, >Up to 6 time/temperature periods per day for central heating and 3 on/off periods for hot waterper day.
  • Backlit large easy-to-read screen
  • Copy/Paste function makes programming quick and simple.
  • Time and temperature settings override for special circumstances without changing the programs
  • Wireless accessories can be used: Wireless magnetic contacts and Wireless outdoor temperature sensor.

And here are the Functions:

  • Hot Water & Central Heating programming
  • Auto, Once, Manual, Always On or Off Options
  • Up to 6 adjustable time/temperature settings , from 5 to 30°C for each day for central heating
  • Up to 3 adjustable on/off periods for hot water
  • Holiday mode of up to 365 days can be set
  • Service Due Indicator
  • Timed Boost & Manual Override
  • Room temperature or Set Temperature display
  • Frost Protection & Circulator pump anti-seizing function
  • Temperature Sensor calibration
  • Auto Daylight Saving time change

And here are the Features:

Room Unit

  • Power supply: 2 x 1.5V AAA batteries (supplied)
  • Dimensions: H 103 x L 80 x D 16 mm
  • Wall-mounted or stand on a base
  • Settings back-up for battery replacement


  • Power supply: 230 V
  • Dimensions: H 96 x L 96 x D 39 mm

Radio technology

  • Radio range: 100 to 300 metres
  • Frequency: 868MHz (ETSI EN 300220-1 standard)

Click HERE to get your Wireless 2 channel Programmer

For the full range of Delta Dore products available at Gas Boiler Parts click here.

Update –

For anyone looking to reset the service interval or reinstate the programmer if it has gone past the boiler service setting, the quick start guide:

  827-Programming - Quick Start.pdf (29533 downloads )

will walk you through it.

30 Responses to Delta Dore Dual Channel Wireless Controller – The Rolls Royce of controls (at a fraction of the cost).

  1. Rob Derbyshire November 20, 2012 at 5:09 pm #

    Interested in this timer…how much to supply & fit please…
    I want it for a worcester Highflow 400 in garage…so I can operate from House.

    • Paul November 20, 2012 at 9:46 pm #

      Hi, Thanks for the query. I will email you directly as we are a supplier only.

  2. Dual Controls Website October 23, 2013 at 11:05 am #


    Great work. Thanks to sharing the useful information for us. I like this post very much.

  3. Gary Sands April 22, 2014 at 7:29 am #

    I have a TYBOX 827WRF, how do you reset the unit when the service date is due, does it require a service engineer?

    • Paul April 28, 2014 at 12:04 pm #

      Hi Gary,
      I have added a link to the quick setup guide on this page for reference now.

  4. Adrian January 1, 2015 at 12:13 pm #

    What are the 2 buttons for on a tybox 827 receiver unit, please? I know that the bottom one can be used to re-associate wireless connection, but I have a feeling that it has a secondary function similar to whatever the top button does. There’s nothing in either manual that I can see.

    • Paul Stevenson January 1, 2015 at 1:23 pm #

      Hi Adrian,

      This download might help –

      Let me know if not and I will email the Delta Dore rep.



      • Adrian January 1, 2015 at 5:26 pm #


        First, thank you for replying on a bank holiday. Thanks, too, for the link. I had already downloaded the quick start guide from the top of the page, but there’s no mention of the buttons in it. So, if you could contact the rep I would be very grateful.


        • Paul January 2, 2015 at 10:39 am #

          Hi Adrian,

          No problem, sorry I couldn’t get it sorted straight away 🙂

          I emailed the local rep and have received the following:

          “In this instance, the 2 buttons are manual overrides, in case something were to happen with the stat (e.g run out of batteries) then you would still be able to turn both your heating and hot water on and off.
          This occurs when just tapping either button just once. You are indeed correct when holding the bottom button that is for associations, but should in the main be ignored.”

          Hope this makes sense but let me know if it is not.


          • Adrian January 2, 2015 at 5:39 pm #


            Many thanks for that. It’s good to know what those buttons do now, but it’s a little odd that they are not mentioned in any of the literature.



          • Keith April 11, 2024 at 8:46 am #

            Thanks for this, which I found after searching on the internet for half an hour.

            Why is this simple fact not mentioned anywhere in the instruction manuals? If we had known this before it would have saved us years of struggling with the over-complicated thermostat timer controller box.

            However we still don’t know why there are 3 buttons and what the colours mean. Sometimes they are red, sometimes green. What does that indicate? Does anybody know?

  5. Sally January 24, 2015 at 10:43 am #

    We have a Delta Dor Radio Tybox and a spanner symbol has appeared but we can find no trace in the manual what rhis means. Can you help?

    • Paul Stevenson January 24, 2015 at 11:44 pm #

      Hi Sally, this could be the boiler service indicator.
      It is a setting that can be enabled and is not linked to the boiler but just based on a date entered in the clock or when the clock was first installed.
      It appears a month before it thinks a service is due.
      Don’t ignore it as when (in its settings) the service is overdue it does override the clock settings.
      Changing it is fairly simple, just follow the instructions on page 3 (I think) of the instructions here –
      Also linked on this page above.
      If you have any problems, email with your contact details (Don’t post them here as this is public 🙂 ) and I can forward you question to the rep.
      All the best, Paul

  6. Vanessa May 16, 2015 at 12:55 pm #

    I am interested in the 827, but have concerns regarding my existing wired thermostat, and how to ‘wire it out’ of the controls system. My system is a standard Y plan, boiler, 3 port valve, cylinder, pump, and stats. Can anyone advise on the room stat wiring issue please.

    • Paul May 18, 2015 at 10:36 am #

      Hi Vanessa, If you email your contact details to they can reply with the rep’s contact details for you to have a chat with.

  7. Lee October 28, 2015 at 12:52 pm #


    Hopefully you can help.

    I turned off the service timer once it had surpassed the count down and ever since I cannot get the temperature set properly. I know it reverts to default of around 16c.

    My problem is that I am unsure of what temp to set it in the advance settings as when I set to around 18c the boiler does not fire up even when I programme it to come on via the timer and set at a higher temp. Also when I increase the temp via the advance setting lets say to 24C it wont switch off when I programme the timer and set to 22C. I have looked at the manuals available and they confuse me even more. I seem to have tried every which way but cannot seem to get it to work properly. I have looked at the manuals and I am sure I have followed the procedures they state but no such luck.

    Thanks in advance for any help

    • Paul October 28, 2015 at 4:28 pm #

      Hi Lee,

      I have emailed you our Delta Dore Rep’s details so he can talk through the query directly.



      • Lee October 30, 2015 at 10:15 am #

        Thank you Paul the matter has now been resolved by discussion with your Delta Dore rep.

        Best regards

        • Paul October 30, 2015 at 11:16 am #

          Thats good to hear. Thanks for letting me know.

    • Richard October 26, 2017 at 9:29 pm #

      Hi, I have exactly the same problem as Lee in so far as I reset the service timer but now the heating temp won’t set properly. Please can you help? Thanks, Richard

      • Paul Stevenson November 1, 2017 at 4:34 pm #

        Hi Richard,

        Sorry for the delay in getting back to you. I have forwarded your email to the Delta Dore rep to get in contact with you.



  8. Vivienne February 3, 2016 at 10:06 pm #

    HI ,
    I am unable to find out what the Spanner symbol on my screen means? Does anyone know what it is…


  9. Danny October 11, 2016 at 5:02 pm #

    Hi Paul,

    Sounds like I have a similar issue to one of the other readers.

    I’ve had mine fitted for around 18 months and when it works, brilliant.

    However, it tends to read the room temp at a higher rate than what it actually is.
    The knock on effect is that when it is supposed to call for heat it doesn’t do it as it says the room temp is higher than what is being requested.

    I measured the temp in a room using a thermometer last week and it said the room was 10 degrees. However the Tybox said it was 18 degrees.

    Any help would be greatly appreciated.

    • Paul October 12, 2016 at 9:26 am #

      Hi Danny, that difference sounds too large. You can expect a few degrees for variances in thermometer calibration (both Delta Dore unit and additional device), effects of drafts (if any) etc. but 8 degrees seems way off.
      I have emailed you the details of the local rep so you can ask him why there is such a difference.

      • Danny October 14, 2016 at 2:43 pm #

        YAY….I think. Time will tell.

        Firstly, Paul, thank you for putting me in contact with the technical team.

        The issue – my 827rf was reading the temperature in the room as being 18 degrees. However, a stand alone thermometer was telling me it was 12 degrees.
        When the unit called for heat (set at 18 degrees) the tybox was already telling the receiver that it was 18 degrees and therefore no heat came on as it believed the room was hot enough already.

        The solution – turn the dial to the spanner. Press and hold buttons 1 and 4 together until the menu is accessed. Select menu 2-01 and it will probably be flashing 0.0 degrees. Using the minus button adjust the variance between your room temp and that which your tybox believes it is, in my case -6 degrees.

        The temp on the tybox now reads the same as the room temp and heat is called for at the right times/heat requirements.

        Thank you again


  10. Jonathan October 9, 2019 at 9:03 pm #

    I have a TY 137 unit for my heating. The Unit does not display the sun or moon symbol when it’s in programming mode. any Ideas
    BW Jonathan

    • Paul Stevenson October 11, 2019 at 1:30 pm #

      Hi Jonathan,
      Thanks for getting in touch, this video by Delta Dore might be able to help with regards to programming and the sun/moon symbol:
      Gas Boiler Parts.

  11. Liz Carroll September 30, 2022 at 4:59 pm #

    my plumber fitted one of these in 2012 to my new Worcester boiler with a pressurized hot water system. I hate it it is not user friendly unless you are a plumber, I am now trying yet again to turn my central heating on after the summer heat wave. I have gone through the lengthy prodceedures to set 6 programs a day and it will still not come on. The boiler has been serviced and a new pump was fitted but still no heat how I hate this system we are now in 2022 and it is still as bad as on day one.

    • Keith April 11, 2024 at 9:02 am #

      Sorry to hear that. We also have had considerable problems with using our Tybox 827 over the years. It is a truly awful product, far too complicated and loaded with unnecessary functions & gimmicks, presumably in order to sell it. And the instruction manual is impossible to fathom. We are replacing our Tybox with a British Gas Hive. Fingers crossed.

      We found out yesterday that we can turn our heating on and off simply by pressing once the bottom of the three buttons (next to the radiator symbol) on the receiver box, and ignoring the thermostat timer controller box altogether.


  1. Summer Breakfast Morning 2012 | - May 31, 2012

    […] their newest products and have offered a new TYBOX 827WRF 2 channel wireless programmer (click here for more […]

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