baxi

  1. T

    Baxi boiler pressure dropping

    Hi, I would appreciate your help for an issue that has been going on for a month or so. It is an old boiler that has worked well thus far. Boiler: Baxi Megaflo system HE I have had to top the boiler pressure up at least once a day. After topping it up to 1.5 or 2 bat the pressure will be...
  2. I

    Baxi boiler system 35/80 fault on pump or low pressure

    Hi Everyone, Our Baxi boiler system 35/80 is showing red flashing lights on the 60-degree setting. The error indicates a fault with the pump or low pressure, which is why we currently have no hot water or heating—we’re literally freezing right now. I’ve attached pictures for reference. I’ve...
  3. O

    Baxi Duo-Tec Combi 24 Boiler - HEATING RESTART ISSUES

    Hi everyone, Everything works fine until water is drawn from the hop tap. The heating switches off (the heating light goes out) while the hot tap is open but it does not return when the tap is closed. It takes a few times opening and closing the tap before the heating turns back on (the heating...
  4. Wayners

    Baxi 105he water pressure problem

    Hi. I have a baxi 105he boiler. Pressure is around 0.4 bar so very low. When heating runs it goes up to around 3 bar. If I run the hot water at the same time the pressure goes up to around 3.3 bar and water comes out the pressure overflow pipe. What would cause this? Thanks
  5. P

    Tado system to replace Hive - Wiring Help

    Hi, We have a Baxi Assure 30 combi and have used a hive system with standard TRVs bar 1 rad for ages. We don't have a hot water tank or anything like that, no multi zones. We basically boosted the heating as and when we wanted and hot water is on demand. We've bought a Tado Wireless Smart...
  6. Hammy193

    Connecting Tado thermostat using OpenTherm to Baxi Boiler

    So here is the current situation. The Tado thermostat is currently connected to the Baxi Assure 36 Combi Boiler using Relay as you can see from the pic below. The Brown wire is in the NO terminal and the Black wire is in the COM terminal in Tado smart thermostat. There is no need for a Live and...
  7. TwoMinutesTurkish

    Cold radiators and a baxi solo 3 pfl 60 that can't decide whether it's on or off...

    As the title says, i have a few cold rads (upstairs all hot, downstairs all cold - all bled etc, i can make the downstairs ones a little warm by limiting the TRV's on the upstairs rads). My boiler, a baxi solo 3 pfl 60, looks like its older than I. The boiler is firing up and then cutting out...
  8. A

    Multizone system and OpenTherm, mixing radiators and underfloor heating

    I’m in the process of acquiring a new boiler due to the conversion of my loft and the installation of a mechanical ventilation and heat recovery system. I’ve recently discovered that Google Nest is unable to handle multi-zone systems and reverts to a simple on/off thermostat. My preference would...
  9. A

    Boiler doesn't hold pressure after temporarily removing radiator

    So we took a radiator off the wall on the weekend in order to paint the wall. Turned off TRV and lockshield valve, drained the water from the radiator etc. Capped off the TRV but it appears that it still kept leaking through the cap (I guess the valve doesn't close properly, never seen that...
  10. Z

    Honeywell T3 to Hive with Baxi

    Hi, I've just purchased a Hive Thermostat today. I originally had a Honeywell Home T3. The boiler is a Baxi Assure Combi 25. The issue I'm facing is the wiring (seems as though this is a common theme. Anyways I've attached a picture of the wires that were in the wall. There is a brown one, a...
  11. L

    Baxi Duo-tec 2 Combi 28 GA OpenTherm Compatibility

    Hi, I've been having a look around here at various forum posts which have been useful, but I can't find the exact information I need. So I decided it was time to sign up and get involved. I'm hoping someone might be able to help. I have a Baxi Duo-tec 2 Combi 28 GA boiler and a Tado v3 wired...
  12. E

    Replacing BDR91 with Hive mini dual channel receiver wiring

    Hi All, Apologies if this has already been answered earlier, but I cannot find a 100% confident answer. I am replacing my old Honewell BDR91 with the new Hive Mini (dual channel) Thermostat. I have Baxi 400 combi boiler at home. Attached image with my old Honewell BDR91 wiring, I have...
  13. D

    Hive and Baxi Duo Tec 40

    Hi, I had the original hive and the hub packed in. So when I saw the new one on a black Friday deal jumped at it for £110. I replace everything but now hive cannot control the boiler. I have changed any wiring. But I have noticed the new receiver has a hot water button. I attach the pic of...
  14. G

    Hive and Baxi ecoblue advance - quick wiring question

    Hi guys, new user but have relied on these forums a few times in the past so a general thanks to all who make this such a valuable resource. I am looking to install hive to my Baxi ecoblue advance Combi boiler and was happily following an older forum post about it but there is an ‘issue’ that I...
  15. B

    Main 24 HE Combi Boiler strange behaviour

    Hi I'm looking for help with strange behaviour from a Main 24 HE Combi Boiler. Symptoms are when turning the boiler on regardless of either heat & DHW or just DWH are after 5 secs the lights show: Burner light is off Flame failure light is flashing slowly Power on is on The boiler won't fire...
  16. A

    Nest E & Baxi 228 OpenTherm issue

    Hi all, I've searched online and can't find anyone with the same issue, so thought I'd post here. At the weekend I installed a Nest Thermostat E to my Baxi 228 using OpenTherm, replacing an on/off thermostat. Initially, I removed the old thermostat's wire from terminal X4 and did not reinstate...
  17. R

    Drayton Wiser & Baxi - Opentherm Installation Issues

    Hi, I've joined because I have a lot of trouble with trying to make my new boiler work with the Opentherm interface and thought someone with more experience than me could help. Equipment: Drayton Wiser - Single Channel Programmer with Opentherm module. Baxi 836 Combi boiler with Opentherm...
  18. C

    No central heating on BAXI DUO-TEC COMBI 24 HE

    Hello everyone, My home has a BAXI DUO-TEC COMBI 24 HE. The radiators won't heat up even though the boiler is showing a green light saying they are running. The hot water is still working though. I've tried bleeding radiators and then pressurising the boiler after but I still have the same...
  19. S

    Baxi Main Eco and Nest 3rd Gen wiring

    Hi all, im a going to replace my PROCOMBI CT Plug in Wireless 24HR DIAL Thermostat with a nest 3rd Gen Thermostat. But I'm a bit confused to how best to do this. The image attached is how the old receiver is wired at the min. Can someone advise if they had done one of these before and the best...
  20. N

    Baxi Gas fire Kingston 2 deluxe

    Hello, first time post on here hoping someone can help me. I'm looking to try and find a replacement thermocouple for the above fire. I believe this is a baxi part number 243737. E25-202 I've looked everywhere but all unavailable and the universal ones don't fit. Thanks Nicola
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