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tpnysted's avatar
tpnysted
Explorer
Dec 17, 2015

Furnace draws down aux battery when plugged into 110

I have my right plugged into 110. My furnace draws the battery down, motor slows down and won't ignite. All 110 accessories work. Shouldn't the furnace be running on stepped down power from the conver...
tenbear's avatar
tenbear
Explorer
Dec 23, 2015
I agree with BFL13. Your converter is doing its job. Some how the converter voltage is not getting to the battery. It could be a circuit breaker between the converter and the battery, maybe you have a battery disconnect switch that is disconnecting the battery, or maybe just a loose wire between the converter and the battery.

Check the voltage at various points between the converter and the battery to see where the 13+ converter voltage drops to the battery voltage.

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