Hive Mini to Worcester 2000 help

[triangularmonkey]

New boiler - same thermostat!

Bit stumped here as was my commissioning engineer (although he was rushed) but my transmitter does not switch on. Here's the wiring to the boiler, the junction and the transmitter panel.

Anything perhaps obvious as to why it shouldn't work?

 

[Johnmdc]

The black and white wires in the boiler are the wrong way round.
If the cover is fixed on the boiler, then the easiest way to solve your problem is to swap over the red and yellow wires on the Hive receiver.