ALL FAQs

  • Is There an Installer Training Centre Near Me? +

    Our state-of-the-art Training Centres of Excellence offer a range of comprehensive installer courses, which can be customised for individual installations and servicing companies. We offer training from our Hull and Leeds training centres, as well as an abundance of pop-up training centres across the UK.

  • What Types of Training Courses Do We Cover? +

    Here at Ideal Heating we offer a wide range of courses covering both our domestic and commercial heating product ranges. We have also been expanding our range of courses for installers including heat pump and heat interface unit qualifications and product training, which are seeing a growing demand as increasing numbers of customers are keen to implement greener alternatives within their properties.

  • What Should I Do If I Think I Can Smell Gas? +

    1. Turn off your gas at the meter or yellow lever attached to your gas meter. 2. If you have LPG turn off the valves on your tank. 3. DO NOT use NAKED flames. 4. DO NOT use ANY Electrical Sockets or Switches 5. Open

    Learn more

  • How Do I Bleed a Radiator +

    If you’re feeling the cold in your home, it could be because you have air in your radiator system. You can check your radiators by carefully touching them while they are on to see if they are cold in places, particularly near the top, which will mean that they need bleeding. 

    Here’s what you should do:

    • After switching the heating off and waiting for the system to cool, make sure you have a radiator vent key and towel at the ready. 
    • Use the radiator vent key by turning it anti-clockwise to open the valve, making sure the towel is behind the radiator just in case it sprays hot water. 
    • Once you’ve finished, turn the key clockwise to close the valve.

    The next step is to check the pressure gauge on your system and make sure it is between 1-1.5 bar. If it’s not within this range, fill the boiler up with the filling loop, which is usually located under the boiler (if you have a heat or system boiler, it may be near your cylinder).

    If you have too much pressure in your system, you can reduce the pressure by bleeding the radiators with a bucket to reduce the amount of water in the system. This is important because it prevents the pressure relief valve blowing open due to an excess amount of built-up pressure.

  • Should I Leave My Boiler On or Off If I'm Going on Holiday +

    If you’re spending some time away from home this winter and aren’t sure what to do with your boiler, we’ve got you covered.

    The simple answer is to always keep your boiler running when you’re away, because in the event of very cold temperatures your pipes can freeze up outside. The best thing to do is to lower the temperature on your thermostat so that there won’t be as much of a demand. 

    There’s no need to worry about the boiler operating unattended. Any boiler installed after 1996 must be fitted with a safety mechanism that shuts down if there are any major faults with the boiler. Leaving your boiler on standby mode can also reduce the risk of parts seizing up inside it, which is another reason why you shouldn’t simply switch it off.

    If you have a Halo Combi Wi-Fi thermostat, you can access an easy-to-use holiday mode which allows you to switch off your preset heating schedule for however long you’ll be away from home.

  • What Should I Do if I Think My Boiler is Leaking Water? +

    In the rare event that you find water is dripping from your boiler, do not be alarmed. It could be that a frozen condensate pipe has filled, and the water is backed-up. 

    If you’ve ruled out the leak being related to a condensate pipe, here’s what you should do:

    1. If the leak is small you may not have to isolate the boiler. Simply put a container down to catch the water (making sure it’s checked regularly so it doesn't overflow) and call an engineer. If the leak is causing damage and there is a lot of water, you will then need to isolate your boiler. Please check your manual on how to do this or contact Ideal Heating. If the boiler is inundated with water, it may be best to use the stopcock and call an engineer.

    2. If you have a leak coming from external pipework or a radiator, this is not a boiler fault but rather a plumbing issue. In this case, try to contain the leak if it’s small. If the leak is causing damage and there is a lot of water, you’ll need to isolate your boiler.

    3. If the pipe is burst and flooding with water, it may be best to use the stopcock and call an engineer. It’s very important that every household member knows where the stopcock is in case of an emergency.

  • My Boiler is Supplying Hot Water But No Heating (Or Vice Versa) +

    If your home has a heat only or system boiler, it’s important to know they cannot tell the difference between a demand for heating hot water and a demand for central heating like a combi boiler can. 

    If you do have this problem with a system or heat only model you need to contact a plumber, not your boiler manufacturer. This is because a system or heat boiler only works off one demand and that is to heat up water — it’s the controls that do the rest.

  • When my hot water is running, the central heating is getting warm - with Combi Boiler installed +
    • Please contact us as this will require a visit from an engineer.
  • My central heating isn't working but hot water is working +
    • Turn your thermostat to its maximum position and check if a C appears on the boiler display. If the boiler fires and the radiators come on, this means the room thermostat wasn't set higher than the room temperature.
    • If the boiler still doesn't fire, please contact us as this will require a visit from an engineer
  • Flashing D AND U Divertor valve in mid-position for service +
    • Rotate all knobs fully clockwise
    • Turn the boiler off
    • Turn the boiler back on and then press restart
  • Flashing L AND 4 Flow Thermistor +
    • Reset the boiler
    • If this does not fix the problem, please contact us quoting error code L4 as this will require a visit from an engineer.
  • Flashing L AND C: 5 Boiler Reset in 15 Minutes +
    • The boiler has been reset too many times in 15 minutes.
    • Turn the power to the boiler on and off again to reset
  • Flashing S AND E Service Interval Timer +
    • Please contact the installer
  • Flashing F AND A Flow & Return Reversed +
    • The flow and return differential is wrong and may have been installed correctly / possible crossed pipes.
    • Please contact the installer
  • Flashing F AND U Flow & Return Differential more than 50⁰ +
    • The difference between the water flow and return is too high (more than 50⁰)
    • Turn the boiler off and bleed/let out the air of your radiators. Ensure the boiler pressure is still at 1 to 1.5 BAR and turn the boiler back on. 
    • Possible blockage, please contact us quoting error code FU (we won't take offence) as this will require a visit from an engineer.

    View our video on how to top up your boiler pressure:

  • Flashing F AND D No Water Flow +
    • Turn the boiler off and bleed/let out the air of your radiators. Ensure the boiler pressure is still at 1 to 1.5 BAR and turn the boiler back on.
    • Your central heating pump may not be running. Gently touch it and if it's working properly, there should be a gentle vibration and it should also be warm
    • If you believe the central heating pump is NOT running, contact your installer.
    • If you believe the central heating pump is running, please contact us quoting error code FA as this will require a visit from an engineer.

    View our video on how to top up your boiler pressure:

  • Flashing C AND 0 BCC Activation Fault +
    • Reset the boiler
    • If this does not fix the problem, please contact us quoting error code C0 as this will require a visit from an engineer.
  • Flashing C AND 2 BCC Chip +
    • Reset the boiler
    • If this does not fix the problem, please contact us quoting error code C2 as this will require a visit from an engineer.
  • Flashing F AND 0 No Water Flow Thermistor +
    • Reset the boiler
    • If this does not fix the problem, please contact us quoting error code F0 as this will require a visit from an engineer.
  • Flashing F AND 7 Low Mains Voltage +
    • Voltage to the boiler may be too low
    • Contact a local electrician to inspect the electrics of your property
  • Flashing F AND 6 Outside Sensor Fault +
    • Reset the boiler
    • If this does not fix the problem, please contact us quoting error code F6 as this will require a visit from an engineer.
  • Flashing F AND 5 Return Thermistor +
    • Reset the boiler
    • If this does not fix the problem, please contact us quoting error code F5 as this will require a visit from an engineer.
  • Flashing F AND 4 Flow Thermistor +
    • Reset the boiler
    • If this does not fix the problem, please contact us quoting error code F4 as this will require a visit from an engineer.
  • Flashing F AND 3 Fan Fault +
    • Reset the boiler
    • If this does not fix the problem, please contact us quoting error code F3 as this will require a visit from an engineer.
  • Flashing F AND 2 Flame Loss / Ignition Lockout +
    • Reset the boiler
    • If your gas meter is pay-as-you-go, check there is credit available
    • Check other gas powered items in your home, if these are also not working, you should contact a local gas engineer
    • Check that the yellow gas isolation valve under the boiler hasn't been turned off. If it is on, the handle/knob will be in pointing in the direction of the pipe.
    • If the boiler is making a gurgling/garglign noise whilst trying to fire, please contact your installer as there may be a blockage
    • If this does not fix the problem, call us quoting Error Code F2
  • Flashing F AND 1 Low Pressure +
    • Water pressure is too low in the system and will require topping up to between 1 bar and 1.5 bar. 

    View our video on how to top up your boiler pressure:

  • Flashing L AND 6 False Flame Lockout +
    • Reset the boiler
    • If this does not fix the problem, please contact us quoting error code L6 as this will require a visit from an engineer.
  • Flashing L AND 5 +

    Restart the boiler: Press and hold the restart button for a minimum of five seconds, then release. Do not try to do more than five restarts in 15 minutes or less because you will see an LC code.

    If this does not fix the problem, please speak to Ideal Heating on 01482 498660 or use the live chat option to talk to one of our representatives. Please quote Fault Code F5 because a Gas Safe registered engineer will want to visit the property.

    You can find more information on fault codes in the boiler user guides. They are available in paper copy, or pdf from our website: https://idealheating.com/user-guides.

  • Flashing L AND 3 No Water Flow +
    • Check that the water pressure to the boiler is at 1 to 1.5 BAR.
    • Check that the yellow gas isolation valve under the boiler hasn't been turned off. If it is on, the handle/knob will be in pointing in the direction of the pipe
    • Turn the boiler off and bleed/let out the air of your radiators. Ensure the boiler pressure is still between 1 bar to 1.5 bar and turn the boiler back on
    • Press the reset button
    • If this does not fix the problem, please contact us quoting error code L3

    View our video on how to top up your boiler pressure:

  • Flashing L AND 2 Flame Loss or Ignition Lockout +
    • Reset the boiler
    • If your gas meter is pay-as-you-go, check there is credit available
    • Check other gas powered items in your home, if these are also not working, you should contact a local gas engineer
    • Check that the yellow gas isolation valve under the boiler hasn't been turned off. If it is on, the handle/knob will be in pointing in the direction of the pipe.
    • If the boiler is making a gurgling/gargling noise whilst trying to fire, please contact your installer as there may be a blockage
    • If this does not fix the problem, call us quoting Error Code L2
  • Flashing L AND 1 Flow Temperature Overheat or No Water Flow +

    Ensure that all radiator valves are open. Check that the water pressure to the boiler is between 1 bar to 1.5 bar. View our video on how to top up your boiler pressure here.Reset the boilerIf this does not fix the problem, please

    Learn more

  • I have changed my Wi-Fi service provider, how do I connect to my new router? +

    1.       In the Halo app, press the grid icon in the top right hand corner of the screen

    2.       Select “System Status & History”

    3.       Select “Smart Interface”

    4.       Select “Delete Device”

    5.       Select “Delete” to confirm device deletion

    6.       Follow the Add Smart Interface Wizard to reconnect your Smart Interface to your new router

  • Can the Smart Wiring Centre run underfloor heating? +

    Yes, the Smart Wiring Centre can run a zone with underfloor heating.

  • Can I still control my heating through Amazon Alexa/Google Home? +

    Yes, if you have installed a Halo Combi Wi-Fi 2-Zone system then you can still control both central heating zones through smart home assistants.

  • I have a hot water cylinder, will this kit control my hot water? +

    Central heating systems that have a hot water cylinder work in a different way to systems that run from a combi boiler. The Halo Combi controls range can't control a hot water cylinder but keep your eyes peeled for the launch of Halo Heat & System later on in 2021.

  • Can this be fitted to other manufacturers boilers? +

    We have fine-tuned the Halo control range to ensure it gives maximum energy savings when paired with an Ideal Heating boiler. These savings would not be the same using another manufacturers boiler so we don't recommend using the Halo controls range with anything other than an Ideal Heating boiler.

  • Do I need to run a switched live demand to the boiler? +

    No, as the Smart Wiring Centre communicates wirelessly to the Smart Interface that is connected to the boiler there is no need to run a wire from the wiring centre to the boiler.

  • Is this a fully modulating control? +

    Yes, the Halo Combi 2-Zone control is one of the only controls in the market that is fully modulating on both heating zones.

  • Does this wire into my existing wiring centre? +

    No, the smart wiring centre replaces any existing wiring centre so no additional wall space is required.

  • Does this 2-zone kit have 2 thermostats? +

    No, this kit is in addition to either the Halo Combi RF or for internet connected control the Halo Combi Wi-Fi.

    Halo Combi Multizone Spec Sheet

  • When I press the override button, my boiler doesn’t fire +

    If your Smart interface is connected internally on the boiler, ensure that the 8 pin connector is secure and that both the mains room stat and opentherm links are in place. If your smart interface is connected via an external bracket please obtain your full boiler model number and call our customer services team on 01482 498660 

  • What are the Alexa Commands? +

    Some of the standard Alexa commands are:

    • Alexa, set my thermostat to 21 degrees
    • Alexa, make it warmer in here 
    • Alexa, set my thermostat to OFF
    • Alexa, what is my room temperature? 
    • Alexa, what is my thermostat set to?
  • How do I connect my Halo up to Alexa +

    Using your Alexa app, Download and link the Ideal Halo skill to your account. This will enable you to control your Halo device via Alexa

  • I have removed an invited user from my Halo App but they are still able to use their Alexa. +

    Due to Alexa limitations, the invited user needs to remove from their Alexa device manually 

  • Are Batteries supplied with the Halo WiFi / Halo Combi RF? +

    4 x aa Duracell batteries are supplied with the Halo.

  • Can I use re-chargeable batteries in my Halo unit. +

    Ideal do not recommend using any rechargeable batteries. Only alkaline batteries should be used

  • How long should the batteries last with general use? +

    It's estimated with general use that the batteries should last between 18-24 months

  • Is the Halo WiFi / Halo Combi RF freestanding? +

    The Halo can be wall mounted or placed on the desk stand included. 

  • How do I update the Halo WiFi / Halo Combi RF software? +

    If your Halo is connected via the mobile app, automatic updates will be transmitted to your unit.  Only the WiFi version of the Halo, comes with this functionality as standard

  • Can the Halo WiFi / Halo Combi RF be fitted onto a multi zone system +

    This option is currently not available but we're working on it.

  • Is the Halo Combi Wi-Fi / Halo Combi RF compatible with all type of Ideal boiler? +

    The Halo Combi Wi-Fi / Halo Combi RF is compatible with the boilers below with serial letter code AFQ onwards:

    Logic Combi C, Logic Combi ESP1, Logic Code Combi ESP1, Logic+ Combi C, Logic Max Combi C, Vogue Gen2 Combi, Vogue Max Combi.

    For compatibility with older Logic and Vogue brackets, a separate Halo Smart Interface bracket is required.

  • Is the Halo control compatible with non-Ideal boilers? +

    No, Halo is only compatible with Ideal boilers to ensure you get the greatest efficiency out of your central heating system as possible. 

  • What powers the Halo Combi Wi-Fi / Halo Combi RF? +

    In a normal situation, the Smart interface is powered by the boiler directly. The Halo control is powered by  4 x AA batteries. If your installation requires a smart interface bracket, The power is supplied by a 24v mains adapter.  

  • My current control is wired to the boiler. Can I wire the Halo to my boiler? +

    No, the Halo Combi Wi-Fi and Halo Combi RF are wireless controls, powered by batteries.

  • Can I use my PC to control the heating? +

    The Halo is currently not controllable via a PC web browser

  • The Halo app cannot find my location using an IOS device +

    From IOS 13 onwards, when you install the app and activate geolocation a system message asking for permission to allow location services to be used will appear. Select the option to "Allow when App is in use". 

    Shortly after when the App tries to use the location services when the app is closed, another system message will pop up asking if you want to allow location services use at all times. This option should then be selected.   

    If any concerns. check the App permissions in the IOS App settings.

  • The Halo app cannot find my location using an Android device +

    On your mobile device,  Ensure the location settings are set to allow useage at all times for the Halo App. 

  • What will happen with Geolocation active? +

    When geolocation is active  Halo will run your preset schedules  (in auto mode) or your  selected tempatature (in manual mode) when someone is at home. When the last person leaves the home Halo will switch the heating to OFF. 

    When the first person crosses the home boundry and returns home then Halo will return to Auto  or Manual mode (whichever was set originally) and your heating will run as set.

  • I have multiple devices and they are all named 'Heating' on my Google Home hub +

    Using the Halo App, If you go into the Halo options in the manage devices section. You can change the device name from the default name of 'heating'. This will then change on your Google Homehub

  • How do I connect up to Google Home? +

    Using your Google home app, go into settings and click on ""Works with Google"" Search for Ideal Halo and select it.

    It will ask you to log into your Halo app to link them. This will let you assign your Halo to a room and enable control.

  • What are the Google Home commands? +

    Some of the standard Google Home commands are…

    • Hey Google, set heating to 21 degrees
    • Hey Google, make the temperature 20 degrees 
    • Hey Google, turn the heating on
    • Hey Google, make it warmer 
    • Hey Google, turn the heating off
    • Hey Google, make it cooled
  • The smart interface won’t fit in the front of my boiler +

    It is possible your boiler may be an older version that is non-compatible with the smart interface unit. You may need an external wall bracket to allow fitting to your boiler.  Please call our customer services team for more details on 01482 498660

  • On my Halo WiFi / Halo Combi RF smart interface the Zigbee green led is solid green on first power up. +

    If your Smart interface shows a solid green led on first power up, please just press the pairing button as instructed in the manual. 

  • My Halo screen shows it has failed to pair. +

    Please check the smart interface is in pairing mode (Red flashing ZigBee led)

    Check the distance between the smart interface and Halo,

    Reset the smart interface by pressing the reset button on the front.

    If you continue to have problems, please contact our customer services team on 01482 498600

  • Can the Halo be fitted to my Heat or system boiler? +

    This option is currently not available, we're working on it.

  • Can the Halo RF be used in conjunction with external weather compensation +

    The Halo RF can be used with external weather compensation

  • Can the Halo WiFi be used in conjunction with external weather compensation +

    Yes, you can. Using the internet connected weather compensation is, normally, much easier to use than the physical weather sensor as you do not have to worry about accurate placement of the sensor, avoiding cold spots or direct sunlight for example. However, if you wish to use an outside sensor set the weather compensation curve, via the Halo app, to 4.0.

  • ​My control offers the option for multizone but I cannot select it. ​ +
    This feature is not implemented currently and will be available in the future
  • Can I input an installer contact number? +

    Yes, this can be inputted during the auto-setup sequence or, if required at a later date, can be inputted or altered via the settings menu.

  • What advanced settings are available to the installer? +

    Advanced settings should only be adjusted by a competent person, the wrong configuration can have a detrimental effect on the thermostat and the heating system.

    • Optimised start - Boiler starts heating in advance of schedule so heating reaches the required temperature at the time specified    Default: OFF
    • Optimised stop - Boiler stops heating in advance of schedule so heatingreaches the required temperature at the time specified   Default: OFF
    • Delayed Start - If the room temperature is close to target temperature the heating start time is delayed to save energy   Default: OFF
    • Display Tolerance -  Select the display tolerance of the room temperature. Can beset at increments of 0.5 or 0.10C  Default: 0.10C
    • Temperature offset - Fine tune the room temperature display -2.5 to 2.50C  Default: 0
    • Daylight saving time - Automatically move to daylight saving  Default: ON
    • Frost protection - The temperature that will used when to protect your home when the thermostat is off. Can be set 5 to 17°C  Default: 50C
    • Service phone number - Opportunity to input Installer contact number for service reminders  Default: Ideal Boilers number
  • What is Optimised Start? +

    The boiler starts heating in advance of schedule so heating reaches the required temperature at the time specified

  • What is Optimised Stop? +

    The boiler stops heating in advance of schedule so heating reaches the required temperature at the time specified

  • What is Delayed Start? +

    If the room temperature is close to target temperature the heating start time is delayed to save energy.

  • My Smart interface has no LED’s lit on the front. +

    If your smart interface is fitted into the boiler, please ensure the 8pin connector is secure and the boiler power is turned on.  If your Smart interface is connected externally from the boiler in a bracket, please ensure the 8 pin connector is secure and that he black power supply is plugged in, turned on and connected to the bracket.

  • My smart interface is showing 3 solid green LED’s on override, Boiler and power +

    Please press the pin reset on the front of the Smart interface. This should reset the unit. If this does not work, please turn the power off to the boiler for 5 minutes. This will fully reset the unit.  If your smart interface is installed externally from the boiler, unplug the power supply for 5 minutes

  • When I first power up my Halo WiFi / Halo Combi RF smart interface has all 4 green LED’s showing solid permanently and is not working +

    Please press the pin reset on the front of the Smart interface. This should reset the unit. If this does not work, please turn the power off to the boiler for 5 minutes. This will fully reset the unit.  If your smart interface is installed externally from the boiler, unplug the power supply for 5 minutes

  • On my Halo WiFi / Halo Combi RF smart interface the Zigbee green led is flashing. +

    This indicates that the Smart interface is currently in the Identify mode accessed by a short press of the pairing button. To exit this mode just press the identify button again.

  • The screen on my Halo is flashing ? +

    The unit has been put into identify mode. A short press on the pair button will stop the identify function. You will also see the flashing zigbee light go solid. 

  • My Halo WiFi / Halo Combi RF unit does not show anything on the screen. +

    If when turning the dial, nothing shows on the screen. Ensure all 4 batteries are inserted correctly. It may be worth changing the batteries to check.

  • How Do I Contact Ideal Technical Support? +

    The Ideal Technical Support telephone number is 01482 498663. Why not browse our FAQs to see if your question has already been answered? From boiler controls to help guides, advice on using your Halo Thermostat or connecting your boiler to Alexa, and the most frequently asked general enquiries.

    Learn more

  • How do I change the batteries in my Halo Combi RF / Halo Combi WiFi? +

    To release the back from the Halo device, grab the top and bottom of the unit and gently pull the Halo away from the rear housing or desk stand,  This will reveal the location of the 4 x AA batteries in the device. Replace with 4 x AA Alkaline batteries, ensuring the correct battery orientation. 

    Once changed, position the Halo back onto the  desk stand or wall mount.
    The Halo will go through a short synchronisation process while it reconnects with your Halo smart interface. The Halo will then return to the home screen. 

  • How do I perform a full factory reset on my Halo? +

    On the smart interface, press and hold both the override and pair buttons for 15 seconds until the Zigbee LED goes orange. This will reset both the Smart interface and the Halo control back to factory settings. 

  • My Halo device is showing a CF01 fault. +

    This indicates that your Halo thermostat has lost connection with the smart interface.  Ensure the smart interface has power and that the distance and location advice in the user guide has been followed.  If problems persist, please call our customer services team on 01482 498660

  • My Halo device is showing a CF03 fault. +

    This indicates that your smart interface has lost connection to your Home WiFi. Ensure your home WiFi is active and the distance and location advice in the user guide has been followed.  If problems persist, please call our customer services team on 01482 498660

  • My Halo device is showing a CF04 fault. +

    This indicates that your smart interface has lost connection to the cloud services. Ensure your home WiFi is active and the distance and location advice in the user guide has been followed.  If problems persist, please call our customer services team on 01482 498660

  • How do I install the Mobile App “Ideal Halo”? +

    The App is available on both the Google play store and the Apple App store. 

  • I’ve forgotten my password for the App +

    When you open the App, click on the forgotten password link and follow the onscreen instructions. 

  • My Geolocation is not working +

    Ensure your app permissions are set to enable location services at all times on your mobile device. 

  • My Phone keeps advising the Halo App has activated my location +

    This is an android driven message to advise that the app is using your location for the geolocation feature. 

  • On my app, What does the circle in the bottom left mean? +

    The Round circle shows the percentage completed of the current programmed schedule. 

  • Can the rest of my family also control the heating? +

    Once you have completed the app setup, you can invite other users to control your Halo thermostat. 

    This is done in the settings menu under the option manage users.

  • I need to remove a a 2nd home or device from my app. +

    To remove a home or device, simply click on the appropriate system status box and then tap on the Smart interface. You should now be able to delete the device. 

  • My Halo thermostat is not showing in the app after pairing. +

    The Halo thermostat could take a few minutes to show in the app.  
    It would be worth checking to ensure the thermostat is fully paired to the smart interface  by using the 'identify' function.

  • Can I power the Halo from an external power source +

    You can power the device using a micro USB lead located in the battery compartment.  The existing batteries must be removed beforehand

  • Can I change the screen timeout on the Halo WiFi / Halo Combi RF? +

    To maximise the battery life, the backlight timeout has been fixed at 15 seconds

  • My override button doesn’t seem to do anything. +

    The override feature is only active when the unit is in failsafe mode. Please see the user guide for further details. 

  • What is failsafe mode? +

    Failsafe mode activated when the Halo control cannot communicate with the Smart Interface. See failsafe modes in user manual

  • How do you wake up the screen on the Halo WiFi / Halo Combi RF? +

    To wake up the screen, press either button or turn the control dial. 

  • My boiler wont fire when asking for heat. +

    If your Smart interface is connected internally on the boiler, ensure that the 8 pin connector is secure and that both the mains room stat and opentherm links are in place. If your smart interface is connected via an external bracket please obtain your full boiler model number and call our customer services team on 01482 498660

  • Where should the Halo thermostat be positioned in the property? +

    The Halo should be mounted 1.2-1.5m above the floor if wall mounted. Alternatively, it can be desk mounted using the provided desk stand. 

    It should not be installed above a radiator or heat source, not in direct sunlight, away from any draughts and not fitted behind a curtain.

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