I just reinstalled the furnace in my 05 and I hookef both blue wires to the blue coming from the furnace. I have two thermostats.
We just used the furnace for the first time last week. I initially thought the two blue wires were from each thermostat. I seems that my forward thermostat closest to the furnace controls the furnace. I also installed cheap basic digital thermostats.
Sudsy
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2005 Sun Voyager Workhorse W24 with 8.1 ltr Chevy. Allison 2100 transmission. Full body paint.
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