Forum Discussion
Old-Biscuit
Jan 12, 2015Explorer III
12V DC power has to go thru both t-stats to get to gas valve......either t-stat opening drops power on gas valve.
Circuit board could be a direct source (circuit shorted) but t-stats still are pathway for DC to gas valve.

Circuit board could be a direct source (circuit shorted) but t-stats still are pathway for DC to gas valve.

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