Need help please

Hi all I have a v8 baby stick and the orange light is continuously on I put it on charge and the light turns red but then turns off but the light on the fire button is on all the time what does it mean thanks

Have you tried taking off the tank and reinstalling it?

Also, possibly taking the tank completely apart and reinstalling the coil may help.

It fires up perfectly so coil is not the issue have taken tank off and put back on and still no change could the battery be knackered?