Is this wired incorrectly??

[Terry87x]

Hi, I recently moved into a property and the Neomitis thermostat has absolutely no affect on the boiler, it is sync’d with the receiver and paired but whenever I turn up the heating on the thermostat the boiler does nothing. I have checked the wiring on the receiver and I’m sure this is incorrect, the black and grey shouldn’t both be in 4?

 

[RandomGrinch]

I’m sure this is incorrect, the black and grey shouldn’t both be in 4?

The grey and black wires should be connected into terminals 3 and 4.
But as the thermostat has been bridged out like that, it suggests something may have been wrong with it in the first place.
Any C/H timer on the boiler should be set to permanently on, for the thermostat to take control.

 

[Terry87x]

So I just moved black into position 3 and is now working as it should, perhaps just bad installation.