frank, my experience is its 99% of the time the valve or something related. you can get valves for as low as 20 bucks and up. depending if its 110 or 12v will make a difference. but, you can convert a 110 system to a 12v with a transformer. the important thing is you get one with the correct flow rate. otherwise theyre all pretty much the same. if you get one with too much of a flow, it'll fill the area with gas and then ignite it giving you a beautiful fire ball and an explosion that will rock your windows. (a trick you can perform over and over if you have the nerve and insurance).
jc
jc
