unfinished tado extension installation

[mark lightfoot]

can someone please help? i have to go away tomorrow for work and the Mrs is NOT happy its not working....



The tado extension is still showing as an unfinished installation but not telling me why. I have done various different wire combinations for the combi boiler we have including replicating what was there previously;


L & N connected

Combos;

wire to 1

wire to 4

(Both tried in jump 1 and 2)

Wire to 1, bridge wire from L to 4

wire to 4, bridge wire from L to 1


There was a bridge wire in the old thermostat, hence trying it in this one


Each time with no luck, on the web app still showing as unfinished but connected. i can click on the installation instructions and tells me congratulations, its complete but it still shows as unfinished.

The bridge and smart thermostat are shown as completed installation.

Firmware on both smart thermostat and extension are the same

anyone help?

 

[AMGasServices]

Which boiler make model do you have ?

Have you removed an existing room stat or is it a new installation ?

 

[mark lightfoot]

Thanks for reply

its an old baxi boiler. we had a honeywell wireless thermostat installed quite sometime ago and that has stopped working so a perfect excuse to upgrade.

When i took the old off, there are 3 cables with a bridge so i thought it would be nice easy like for like installation

 

[AMGasServices]

Did you take any pictures of the old one before removing it ? The wiring diagram?

 

[AMGasServices]

For experience

On the extension it should be L, N ,1 & 4.

The jumper position on the back of the extension kit box should be set to position one I think (potentially volt free)

 

[mark lightfoot]

currently the L & N are wired correct and third wire to 1 with the jumper set to 1.

unfortunately i didnt take any before i started

 

[AMGasServices]

Put the third wire it 4

 

[AMGasServices]

Do you still have your old stat if so please upload a picture of it.

 

[mark lightfoot]

I have attached a photo of the old thermostat

DSC_0975 by Mark Lightfoot, on Flickr

 

[mark lightfoot]

i have put the third wire into 4 and confirmed it is in jump 1 position

 

[AMGasServices]

Try that. Press and hold the button on the top of the extension kit until the led flashes rapidly. Once it’s connected to the other bits room stat the led will fade in and out.

From looking at the picture it appears that the third cable was in position b.

 

[AMGasServices]

From there you will need to set it all up via the room stat. I can talk you through the instructions but don’t have the manual to hand also can’t remember it all of the top of my head.

 

[mark lightfoot]

i have held the button down for 8 seconds to restart, then 3-5s so the led blinks rapidly. soon after it blinks 4 times and then a pause to show connected. i go to my tado login where it shows its connected but still unfinished installation.

 

[AMGasServices]

Yes because it requires you to set it up via the room stat.

 

[ShaunCorbs]

sounds like its a connection issue

 

[AMGasServices]

sounds like its a connection issue

The issue is that the Tado doesn’t know what kind of system it’s connected to.

Mark please send me a private message.

 

[mark lightfoot]

i didnt know i had to go into the smart thermostat and press a tick for the extension kit... i knew it would be something simple i was missing. is it in the right port 4 rather than 1?

 

[mark lightfoot]

feel a tool but i knew it would be something simple too

many many thanks

 

[mark lightfoot]

the unfinished installation icon has now disappeared also

 

[AMGasServices]

the unfinished installation icon has now disappeared also

Has it all fired up etc....

 

[mark lightfoot]

the opposite, its turned off but thats great because it was constantly heating and the house was upto 26 degrees so now its detected the thermostat, its cut off... so far id say so good. is definitely correct being in port 4, id have thought port 1 was correct

 

[mark lightfoot]

sorry, me again! the third wire should definitely be in 4?