3 ms·
To your point, I have had the high voltage side of a high-efficiency furnace (e.g., inducer fan) fail and take out the entire string of low voltage components (
by wwmiller3 2y ago
To your point, I have had the high voltage side of a high-efficiency furnace (e.g., inducer fan) fail and take out the entire string of low voltage components (thermostat, humidifier controls) connected to the furnace through an unfortunate coupling on the primary control board.