If you are using a neoAir V2/V2m/V3 (white back light, no SETUP in bottom right corner)
- Go to the power icon on the left
- Press and hold tick until you see SETUP
- Press tick
- Press down arrow to make small number P2
- Press tick
- Make sure large number is 00
- Press tick
- Make sure small number 01
- press tick
- Make sure letters are set to rA
- press tick
- Test by turning the heating up and down and ensure that the UH8-RF V2 responds,
If you are using neoAir V1 (blue backlight, SETUP in bottom right corner)
- Use the left right keys and move box to SETUP
- Press tick
- Press down arrow to make small number P2
- Make sure large number is 00
- Press tick
- Make sure small number 01
- press tick
- Make sure letters are set to rA
- press tick
- Test by turning the heating up and down and ensure that the UH8-RF V2 responds,
If the wiring centre still does not respond, it could be that the thermostat is not paired correctly
Have a look at How do I pair the neoAir to the UH8-RF v2
It may also be a signal issue, try taking the thermostat closer to the UH8-RF V2 and test there. If it responds, you may need a neoPlug to boost the signal.