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Yes..hi limit switch would normally be closed..completing the circuit. If open then fan will still run but no command for ignition and propane will occur
Just remove the two leads from hi limit switch and verify across the hi limit switch that you have continuity.
If you don’t have a meter you could.. as a TEST ONLY remove the two leads in the hi limit switch and connect them together to see if furnace will fire...
This is for testing ONLY
Note...if fan isn’t coming on sail switch and hi limit switch have nothing to do with the issue
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