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The limit switch attached to the blower and the fuse in the wire in the burner don't seem to be the culprit . I would assume then that my main limit switch didn't reset but I didn't have any luck...

Here is what I have tried so far. Replaced batteries in thermostat, took the wires off the limit switch attached to the blower and linked them the blower was still going. I'll have to try more...

I have a Payne 399AV that is about 15yr old. Just started to blow non-stop with no heat. Pressed the reset on the auxiliary limit switch, no change. Looking for flame rollout switch shown in...