HF 250-1 gas keeps flowing until unit is powered off

[joshuahughes]

Gas solenoid already replaced. Any suggestions?

[cruizer]

Stuck contacts in CR3 relay maybe

[duaneb55]

Are you waiting the 15 seconds for the post flow timer to time out? 15 seconds is a long time when you're waiting.

[pwteng]

do you have a remote switch on your torch?and is it good

[Drf255]

Is the selector switch set to panel or switch?

[tommy2069]

blow out the new valve with air and also blow out the hose too .i had a problem something like this and it was very fine dust that was in the hose.it doesn't take much to get a valve not to close.

[ccawgc]

sound like the post flow timer is not timing or the relay is stuck like cruzer said.