does the light on the tx stay on/ stay green?
if so the button is a bit bent, take the top off and rebend it
try batteries in the tx and rx
confirm the channels are the same?
right so it's none of the issue's I've had then
not firing at all? I had one go off randomly cos it picked up somat else
erm I'll have a little ponder and get back to you, FiTP is worth a PM as he sorted me right out when I had the button issue
Is the red light flashing on the receiver when it is switched on?
Are you sorted then?
Can you check the voltage on the CR-2?
You need to be careful when you pack away the tx as the button can be pressed down without your knowledge and then flatten the batt.
Are the tx and rx working now?