Whats Wrong, Fuse keeps blowing

I purchased the Tado wireless V3+. I have a plumb centre 340000 controller. I have followed the installation instructions via the app and wired the wireless receiver as instructed. When I switch the power back on, the unit pairs with the internet bridge and appears to be ok. press the testing button for the hot water which works ok. Press the testing button for the central heating and the fuse blows. Anybody any ideas what wrong?

Answers

  • I’d guess you have incorrectly connected a Neutral wire to one of the 3 terminals for CH control. Connecting Live to Live won’t cause a problem, but connecting Live to Neutral or Earth will blow the fuse. Double check the wiring instructions and make sure the pvc insulation on the wires has not been damaged. If the wires are stranded check for stray strands.

  • Thanks will check later on today