Forum Discussion

PatrickFisherPr's avatar
PatrickFisherPr
Explorer
Dec 19, 2015

Drawing more than 12 volts off auxiliary battery

I have a 1984 Toyota Sunrader. Under the hood is an auxiliary battery, which charges off the alternator. The auxiliary battery operates my water pump and the furnace. The furnace requires approx...
Seeking Advice
Golden_HVAC's avatar
Golden_HVAC
Explorer
Dec 20, 2015
PatrickFisherProject wrote:
The furnace is a Suburban NT-12SE.

I appreciate all the suggestions provided.


The furnace should be running just fine on 11.8 volts. I would be checking the voltage of the battery running it. Probably not charged, or it is worn out and not holding a charge.

Good luck,

Fred.

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