honeywell

  1. M

    Honeywell Flex 50 ethernet module A083 not recognised

    I am having trouble with my Flex 50 panel recognising the ethernet module. It was working, but I was making some changes to the setup and removed it temporarily. Now when I connect it and go to autodetect option 72 it does not recognise if I connect or disconnect it and I cannot get it to work...
  2. bob-the-intern

    Honeywell T40 to Hive Thermostat Mini

    Hi there, First of all, thank you for your time. I'm looking at replacing my Honeywell T40 thermostat which serves pretty much as an on and off function on my home heating, I've a combi Vaillant boiler and the thermostat is wired to 1 (red cable) and 3 (orange cable) terminals, using the...
  3. M

    Honeywell T3R thermostat keeps increasing the temp.

    Hi, over the last couple of days we’ve come home and found our house at 26 to 27 degrees. But our thermostats are set to factory settings which whilst during the day should be 16 degrees. I’ve looked through the settings and nothings changed and have no idea why the house is randomly heating...
  4. S

    Wiring an external controller:

    ..
  5. C

    Replace Honeywell Wireless with Nest

    Hello, I've got a quote for a tradesman to do this but I'd like to see how much of a direct swap out it is, as I'm happy to do it if it's as simple as I expect. So I have a Honeywell thermostat and programmer (it's a single wireless unit in the hall) with a control box just next to the boiler...
  6. R

    Honeywell to hive

    Hi i am wanting to swap the current honey will system attached to my combi boiler with a new hive one whilst I am not an expert, I am competent so believe I can swap this the same as I would a light switch or plug fitting - am I right that in the images attached, the wires would line up like...
  7. D

    Heat link wiring to Honeywell Smartfit

    Hi, I’ve read multiple posts about installing the Nest Heat Link to the Honeywell Smartfit. However I seem to be struggling on how to physically wire it up. The attached photo is how the smartfit is wired up currently with everything working. Can anyone offer some advice and guidance on how...
  8. A

    Help on Old Honeywell system/battery replacement/errors

    Hi We have an old Honeywell system. They keypad has a sticker on it saying Grade 3 Class II. There had been some low battery errors for a while so as the walls were being painted the opportunity was taken to replace the batteries in the sensors mentioned on the keypad. No alarm went of when...
  9. S

    Honeywell Galaxy 2-12 C012 - Reset to Factory

    Hi all, can anyone help... I have access to the engineer code 112233 and 1234 now after doing the reset using the method posted below on a previous post on this website: • Pulled fuse/mains power • Disconnect Batteries • Disconnect both tamper wires • Disconnected all other PIR / BELL / wires...
  10. J

    Hive Dual Channel To Replace Honeywell BDR91 & ST9400s

    Morning all, Apologies, I'm aware this set up has been discussed here before. I'm looking to replace my Honeywell BDR91, ST9400s and wireless thermostat to control heating and hot water (cylinder) with Hive dual channel. I understand the ST9400s and the Hive Dual Channel Receiver have...
  11. M

    Tank thermostat very inaccurate

    I have been buying cheapish Hot water cylinder thermostats in the past but have had to change a couple recently as they just packed up! So I bought a Honeywell stat but that was so inaccurate I sent it back. Bought another one and it's the same. I have probes that i have calibrated with freezing...
  12. D

    Electrical mechanical valves central heating

    Hi all just changed the pump on my fully pumped system it was a like for like pump. System has 2 zones upstairs and down stairs. Turned it on pump works fine and upstairs works fine but downstairs doesn't come on at all . I opened the downstairs em valve manually but it still won't come on! In...
  13. R

    Replacing Honeywell ST9420C and Wireless Thermostat with Google Nest

    UPDATE: Now resolved this myself, thanks to earlier post by Muggles. I just forgot to put the additional live connections to T2 and T5. Silly mistake on my part but all working fine now. Hello I’ve just bought a Google Nest Learning Thermostat v3 to replace our old setup. Sorry, I know there...
  14. C

    Honeywell ST9400C

    Hi, I have the aforementioned programmer which is working fine for hot water but not for CH. It seems that no matter what setting the CH is on (timer, continuous, override) it will not come on unless it is a particular time in the evening. For example, if I set the timer to come on at 2pm, the...
  15. K

    Actuator

    For last couple of weeks heating/radiators havent been turning off. Checked, and it seems one of the motorised valve actuators (Honeywell) is alway open. (No resistance on the little lever) The metal casing is very hot compared to the other 2 so an wondering if the motor is running constantly...
  16. alarmbenjy

    Repeated False Alarms (Wired System)

    System log:- 205) SET PRGRAM 21:35:57 206) ENTRY START 13:11:46 Zone 1 207) ENTRY TIMEOUT 13:12:15 Zone 1 208) INTRUDER 13:12:51 Zone 1 209) INTRUDER 13:13:05 Zone 1 210) INTRUDER 13:13:07 Zone 1 211) INTRUDER 13:14:21 Zone 1 212) INTRUDER 13:14:27 Zone 1 213) INTRUDER 13:14:34 Zone 1 214)...
  17. A

    Understanding a Honeywell CM907

    I've moved into a new house and I'd like to upgrade to a smart thermostat, such as the Draton Wiser. Self installation seems do-able but I don't understand my current Honeywell thermostat CM907. Most smart thermostat install guides show many wires coming into the backplate of the existing...
  18. C

    Honeywell Flex Flash Advice

    Hello i have acquired (eBay) a Honeywell flex fx20 panel and don’t have any code seems to work ok but can’t full test without access I was hoping to default the panel and use it for a backup or testing I am using the Honeywell flashing program and also have all the firmware files Am...
  19. D

    Hive Dual Channel replacing Honeywell BDR91 & ST9100c

    Hi, I would like to replace my existing Honeywell ST9100C HW controller and BDR91 CH receiver with a Hive dual channel receiver. The system has an immersion tank for the HW. The BDR91 is wired as follows: The ST9100C is wired as follows: These 2 cables go back to a 10 way junction box...
  20. L

    Replacing Honeywell ST9100a with Hive

    Hi everyone, We are just in the process of a kitchen refit and have purchased a hive (single channel). Having removed the face place for the existing programmer (Honeywell ST9100a) I have noticed more wiring than I had expected, for example multiple cables in Earth, Live and Neutral. Looking...
Top