Problems setting throttle on esc with new receiver

[StuartH]

Hi, I am trying to set up my esc on my dex210 rtr.

The esc and motor is a speed passion revention combo. I have managed to bind the RTR receiver ok and set up the throttle settings using the bundled radio gear. All ok.

The problem comes when I put in a core rc fhss receiver (because I want to run all cars from my one transmitter). The receiver is bound and steering response is great, however when I am trying to set the throttle points on the esc I am getting no response.

I have tried reversing the setting on the transmitter, switched off all the EPA and trims but I am getting no response at all. Battery is fine and esc seems to work with the other setup.

Any ideas????????