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teambeeson's avatar
teambeeson
Explorer
Jun 23, 2016

Duo Therm Furnace - lower voltage that triggers blower?

Hi. 1986 truck camper and it has a "Duo Therm 661 2-006" gas furnace, which works awesome when the camper is plugged in, but when I'm on battery the main blower/burner won't trigger except on a 100% t...
Truck Campers
time2roll's avatar
time2roll
Nomad
Jun 23, 2016
I would think the furnace should operate from 15 down to 10.5 volts.
That is voltage at the furnace. Voltage drop in the wiring is another issue.
Yes check the airflow past the sail switch. Many RVs barely meet the minimum duct size requirement. If you can add a duct I recommend it.

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