Forum Discussion
rockylarson
Nov 20, 2019Explorer
The air flow from the fan moves the sail switch that tells the furnace that it is ok to release propane and start the igniter.
Not an expert but that is my simple understanding. Somehow I don't think having that safety feature open or not functioning is not advisable.
Not an expert but that is my simple understanding. Somehow I don't think having that safety feature open or not functioning is not advisable.
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