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Old 09-11-2019, 11:13 PM   #1
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trouble shoot furnace for A frame trailer

I tried using my furnace which seems to work okay. I turned the furnace to DC input and opened the propane tank valve. I did not turn the furnace on inside the trailer. My 2 month old battery was dead after a few hours. the battery stays charged for days when I leave the outside furnace DC switch off. Any ideas on what is going on?
a second time I tried it as I thought the first was some fluke, the battery ran nearly down and then the CO2 detector went off. Help if you have seen this or ideas. Thanks!
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Old 09-12-2019, 12:27 AM   #2
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I tried using my furnace which seems to work okay. I turned the furnace to DC input and opened the propane tank valve. I did not turn the furnace on inside the trailer. My 2 month old battery was dead after a few hours. the battery stays charged for days when I leave the outside furnace DC switch off. Any ideas on what is going on?
a second time I tried it as I thought the first was some fluke, the battery ran nearly down and then the CO2 detector went off. Help if you have seen this or ideas. Thanks!
Not understanding these statements:

I turned the furnace to DC input

when I leave the outside furnace DC switch off
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Old 09-12-2019, 05:42 AM   #3
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Are you mistakenly turning on the switch to the WATER HEATER ?? I've never seen a furnace with outside access...or a DC input switch.

Water Heater has a switch outside to turn electric heating element on and off.
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Old 09-12-2019, 06:25 AM   #4
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Furnaces are a huge draw on batteries. If you plan to run it frequently you either need to recharge the battery each day and or get more battery capacity... Not sure how fast your battery drains but new or old, you might want to have it load tested to see if it's up to snuff...

If you do a lot of boondocking and you plan to run the furnace, I would suggest upgrading to two 6 volt golf cart batteries and plan to have a generator to recharge them....
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Old 09-12-2019, 06:31 AM   #5
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Lewie, we’d like to know the brand name of this A frame and the brand name of the furnace.
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Old 09-12-2019, 01:22 PM   #6
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Furnace issue

You have answered my question. I do believe I was turning the water heater to DC input.

If I understand it, my furnace does not have a switch outside inside of a louvered panel. Thank you!
FYI. My trailer is a hard sided Pop up "A" frame. Rockwoodmodel # R00183
year: 2011
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Old 09-12-2019, 01:39 PM   #7
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You have answered my question. I do believe I was turning the water heater to DC input.

If I understand it, my furnace does not have a switch outside inside of a louvered panel. Thank you!
FYI. My trailer is a hard sided Pop up "A" frame. Rockwoodmodel # R00183
year: 2011
OK, first you need to do some research about your trailer.
1. A Roo 183 is NOT a A-frame trailer. It's a hybrid TT. An A-frame trailer is a folding trailer with a roof that is shaped like an A, when opened.
2. Furnace operates through a thermostat
3. The WH outside switch is for 110v AC operation. The WH inside switch is for propane operation.

But you need to clear up whether you have an A-frame trailer or a hybrid trailer.
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Old 09-12-2019, 02:02 PM   #8
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I believe that the switch you turned on was for the refrigerator. It is probably a 3-way unit that runs off of 120 volts AC or 12 volts DC or propane. There are no 12 volt DC water heaters, although the propane heaters often do use 12 volts DC for the control board.

The battery will discharge quite fast on DC power for the fridge. The 12 volt mode is designed to be used while towing with a charge line between the tow vehicle and trailer, so that the trailer battery stays fully charged.

Rockwood A Frames usually come with this unit (Below the cooktop in this photo




Link to manual here:
http://manuals.dometic.com/download.php?file=1674
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Old 09-12-2019, 02:42 PM   #9
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Bluepill, we're not even sure the OP even has an A-frame trailer, since they posted that the model is a Rockwood Roo 183 hybrid TT.
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Old 09-12-2019, 05:05 PM   #10
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Lewie, we’d like to know the brand name of this A frame and the brand name of the furnace.
FYI. My trailer is a 2011 Forest River RV Rockwood Hard Side Series A126.
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