If you have an old control box, it's pretty straight forward to make a test box out of it with a few switches.
I think we used 3 switches and just manually turned on the fuel pump, igniter coil, and fan.
Maybe it was 4 switches, now I think about it. A 4th for the fuel solenoid.
You can swing it open and watch the spark and fuel mist pattern.
Be careful if you turn on the ignition while you have the fuel on, it gives off a pretty good flame!
While it's open, take a look at the burner area. I have seen them get melted from too much heat/blocked exhaust.
Happy Glamping.
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Happy Glamping, Norman & Elna. 2008 Winnebago Adventurer 38J, W24, dozens of small thirsty ponies. Retired after 40 years wrenching on trucks! 2010 Ford Ranger toad with bicycles or KLR 650 in the back. Easy to spot an RVer, they always walk around with a screwdriver or wrench in one hand!
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