Evo smart heating help

[Missjoe]

Hi,
Just moved house on Wednesday. It has an eco smart heating system.
2 errors have flagged up…one the utility activator. And the other as per the pic. We’ve no hot water…anyone able to help?

 

[fronty]

Can you upload some pics, they don't seem to be attached to your post.

 

[Missjoe]

Apologies….just a dim girl with no idea how to sort this stupid (sorry smart!) system

 

[Missjoe]

Pic attached now

 

[fronty]

For some reason your controller can't talk to the hot water relay, if you press and hold the settings button for 5 seconds you'll get the installer menu up, press "rf comms check" then select "rf test hot water", press next, and it should send a test signal, take a pic of that screen and upload it.

 

[fronty]

On my system I get a screen like this... which means the controller has been able to talk to both heating and hot water relays...

 

[fronty]

Next step is to try and locate the relays, mine are in the airing cupboard but they could be anywhere in your house, they look like this...

 

[fronty]

Press the button briefly and the green LED should come on, then the boiler should fire and depending which one you pressed you should get heat or hot water, that will at least give you some manual control until we can figure out the communications issue.

 

[Missjoe]

See pics below.

 

[fronty]

Oh that's interesting! The box on the left with the red and green LEDs is the hot water temperature transmitter for the evohome, this is so it knows how hot the water is (on the main screen it should show the hot water temperature on the bottom left - does it show that?). The problem is that both LEDs should not be lit, I can't remember what that means, it's either lost the WiFi connection or the batteries are running flat (it takes 2 x AA batteries).

Now the box on the right is some kind of separate WiFi controller completely unrelated to Evohome, you will need to download an app to your phone to be able to use that as it's not part of Evohome, I think it will probably control the immersion heater inside your hot water tank - if you press the round circle button that is a manual override, and the immersion heater should come on to give you hot water (but that will use electricity rather than gas so is more expensive). But at least you should get some hot water, give it an hour or so and you should have piping hot water.

The instructions for that gadget are here: https://www.tlc-direct.co.uk/Techni...ard_1/FSTWIFI_FSTWIFITGV_ISSUE2_2015_LOGO.pdf

Now we still need to find your Evohome relays like the ones in my pic - your RF test failed to find them so either they are powered off, the previous home owner removed them or they are disconnected from the WiFi and need to be re-bound. Best thing to do is search the house high and low for those boxes, check by the boiler too and in the attic and under the stairs, if you can't find them try and see if you can find evidence of screw holes - maybe the previous homeowner removed them.

By the way does your heating work?

 

[fronty]

Here's mine...

 

[fronty]

Oh something else to help you find them, there's normally a white box located somewhere in the airing cupboard or near the boiler that has loads of wires going in and out of it, that's your wiring centre, the relays are normally wired into that, so if you can find that box then you should hopefully be able to find the relays.

 

[Missjoe]

Is this the boxes?!

 

[Missjoe]

Don’t seem to have heat either

it worked until sat early hours

 

[Missjoe]

You mention rebound…how do we do that?

 

[fronty]

Is this the boxes?!

Yes that's them, you need to figure out which one is which, start with the left one, press the button, does the green LED come on? If so that's good, leave it a while and check if your radiators get hot or whether the pipe into the hot water tank gets hot. Then press the button to turn it off. Repeat for the right hand one. (If the green LED doesn't come on, or nothing gets hot then there's another problem).

If you have a sticker or felt tip, and you have figured out which relay does what, just write H (heating) or W (water) on each one. You need to do this before you rebind.

You might not actually need to rebind the relays, it could be that the wifi signal isn't reaching that far. Try to move the controller up near the relays (in the airing cupboard?) then try the rf check again. If the rf check works you should see the red LED on each relay blink several times.

Let us know how you get on. I have this system and when it works it's brilliant.

 

[Missjoe]

It’s working! Well all apart from an actuator error in the utility room…could this be needing a change of battery or something simple.

 

[fronty]

It’s working! Well all apart from an actuator error in the utility room…could this be needing a change of battery or something simple.

What did you do to get it working?

 

[Missjoe]

Pressed the button again. Reset the WiFi and moved the box closer to the relay switches for a while. Thank you so much…I really appreciate your help and guidance!