Auto Propane Valve Failure

[edatlanta]

My propane valve, Marshall #250, failed. I have suspected it wasn't right for some time, but it quit flowing propane and wouldn't switch to the full tank even manually. Also, the active tank wasn't empty either. It still had about 40% in it, but no flow. I replaced the valve with a CAMCO brand and all is working fine again.

I thought it interesting that the Marshall #250 was recalled in 1994 and the company went out of business, but it is being made again by another company now. There is probably no connection today to the 1994 issue, but it is interesting.

[edatlanta]

Yes I tried closing and then reopening both tanks slowly. I removed both tanks and tried the fullest tank on the side where the half full tank stopped flowing and the full tank flowed. I removed both hoses from the valve an switched sides to eliminate a bad hose. The bad side of the valve was still bad.

The valve was bad plain and simple and the new one works perfectly.

[rhagfo]

Have you tried closing both tanks, then opening each valve very slowly?