What might cause a DFG-100 LP Oven to have a hard relight (like gas not purging) after working flawlessly?

[albumen]

A new LP valve has been installed, the ignition module changed to match, Axial fan replaced, burners adjusted once the manifold pressure was 10 in wc.  It runs like a champ.  Holds temps so much better.  So much I thought it was not working.  Temp probe inside dead on 350.  Here are a few snaps of the finished install, manifold pressure and the best I got at the burner tubes.  Thank you all for your help in diagnosing this issue.  It Is CLOSED!!

[ectofix]

Thanks for the feedback!

 

In your picture, that’s the same cheap UEI digital manometer we have at the shop.  Does the job well.  I trust it almost as much as my water manometer.

[fixbear]

Used to carry one a bit simular,  But we also had a bottle of murcury with it.  It was a pain, cause it was on a ridgid board and about 3 ft long. in a wooden case about 42 inches long and a foot wide.

[albumen]

Works great and is simple.  They tend to last the longest.

[albumen]

That is crazy…glad times have changed.  Would like better one but I do not use it enough to bother with an upgrade as it works great.

[davejohnsonnola]

Nice to see when an original poster lets us know the final outcomes!