Fans not working

[OliRose1994]

Yes. Take the brown plug (iirc) off the brown sensor on the stat housing while engine running...
That should make the fans run full speed.
If not...likely knackered fans/relays or both

Thanks for the reply. Unfortunately, I have tried that on both the old fans and my current ones - neither of which worked. I tried both the brown and blue plugs. The fans were checked before installation and the relays have been double-checked by myself. Further re-enforces my thoughts that it could be a wiring issue .

Thanks again, though!