Furnace works; then doesn't; works again?
2003 Fourwinds E450. Last trip to NY, furnace did fine all day but went to bed and wouldn't hold temperature and could hear blow turn on but ignitor won't fire, so turned it off. Just got it back from...
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I am in the check the battery camp, but not the 12 volt battery,. Check the battery in the digital t-stat. Even though you say it is a new stat the cheap batteries they sell with anything these days don't last long. And it is a lot easier to check t-stat battery than trailer battery.
