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Installing tado to replace Sunvic controller with Glowworm boiler - gone wrong

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Hi,

We tried to install a tado wireless thermostat today but no luck, and when we tried to put the old controller back the boiler won’t work at all now.

Details:
-Sunvic select 107xls
-Glowworm flexicom 24cx

Below how we tried to install tado. We believe the wires were originally as shown on the Sunvic but unfortunately we didn’t take a picture at first so might be wrong

Now with either controller the boiler just flashes incoherent symbols but the Sunvic controller appears to work (occasionally flashes and displays ‘2 p-u’

Any ideas?
Thanks

Answers

  • johnnyp78
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    Below? You can post photos on the desktop version of the forum if that helps.