Bottle heater on.......pressure not rising
WTF? The pad is warm to the touch, but the pressure isn't changing.What the hell?
If you don't have much N20 in the bottle it will take a lot longer to build pressure, it may also not get very high at all.
Do you have a test light?
If so, disconnect your ground from the heater, hook one end of the test light to that (Preferbly a meter) and the other enc of the test light to ground and have someone tirn on the relay. Do you have power for sure?

