by Mark F » Wed 29 Jun, 2016 4:09 am
First, is there a bit of a hiss when you screw the canister onto the stove or when removing. If so then gas is reaching the stove. If not try a little more force attaching the canister. If still no gas then there is a problem. Either the pin in the stove is too short to open the valve or the canister valve assembly is not correctly aligned. If your other stove works properly with the canister the problem is likely to be the stove.
If gas is getting to the stove then either the jet is blocked - remove and clean jet. Or there is gunk in the valve - dismantle and clean. See the recent thread on the BRS-3000. Or does the jetboil have a pressure regulator? I think one of the new jetboils does. If so return to retailer.
"Perfection is attained not when there is nothing more to add, but when there is nothing more to remove".