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01-25-2011, 04:56 PM
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#1
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Junior Member
Join Date: Jan 2011
Posts: 6
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powering 12v furnace
Hey guys, new to this forum and been checking it out for awhile now.I have a question regarding my new Snow King enclosed trailer equipped with a 42,000 btu Suburban furnace.It is set up to power through my tow vehicle at 12 volts, my question is how can I power just the furnace up so I can work inside wtith heat in my driveway without having to hook up my truck and run it?I have a few things to do inside before I can load it up with my three sleds, so I was wondering which pin in the 7 pin connector provides power to the furnace?
Thanks in advance for any responses!If anyone has any nifty setups for doing this let me know!
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01-25-2011, 05:06 PM
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#2
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Member
Join Date: Oct 2010
Location: Kansas City (north) Missouri
Posts: 61
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does it have a house battery? the hook uo to the tv s for charging when traveling down the road not to run off of.
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The Family Truckster Team:
Michael & Belinda
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01-25-2011, 05:13 PM
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#3
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Junior Member
Join Date: Jan 2011
Posts: 6
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Quote:
Originally Posted by mg0427
does it have a house battery? the hook uo to the tv s for charging when traveling down the road not to run off of.
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Nope, no house battery.It's a 24 ft. V-nose enclosed snowmobile trailer.Furnace was a factory ordered option.
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01-25-2011, 07:16 PM
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#4
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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Might be a lot easier to add a deep discharge battery to run the furnace. Does the trailer have brakes?
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Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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01-25-2011, 07:37 PM
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#5
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Senior Member
Join Date: Dec 2010
Posts: 517
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Quote:
Originally Posted by gader69
Hey guys, new to this forum and been checking it out for awhile now.I have a question regarding my new Snow King enclosed trailer equipped with a 42,000 btu Suburban furnace.It is set up to power through my tow vehicle at 12 volts, my question is how can I power just the furnace up so I can work inside wtith heat in my driveway without having to hook up my truck and run it?I have a few things to do inside before I can load it up with my three sleds, so I was wondering which pin in the 7 pin connector provides power to the furnace?
Thanks in advance for any responses!If anyone has any nifty setups for doing this let me know!
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It's the red wire. Or just connect a battery charger to it.
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2009 Dodge Ram Mega Cab 2500 6.7 cummins
2011 Forest River Cherokee 28BHKS
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01-26-2011, 07:50 AM
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#6
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Site Team
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 9,850
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A 24' enclosed trailer has to have brakes in every state I know of. If they're electric, you can use the brake battery or as Lou said, add a deep cycle battery to run the furnace.
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Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
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01-26-2011, 10:20 AM
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#7
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Junior Member
Join Date: Jan 2011
Posts: 6
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Thanks for all your ideas guys.Found a solution last night.I borrowed a booster pack from my dad and hooked up the booster clamps to the ground and hot wires in the trailer connector.Now I have another problem.The blower kicks in as it should, followed by burner ignition, but the burner will only run about 2 minutes, then there is a click and hot air slowly goes to cold, sounds like the burner is going out.Trailer is brand new, I tried it three times last night with the same results.Anyone got any ideas?My dealer is over an hour away....
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01-26-2011, 10:53 AM
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#8
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CLASS "A" Senior Member
Join Date: Nov 2008
Location: Upperco, Maryland
Posts: 3,136
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Possibly a partially blocked exhaust. Maybe a mud-dabber made a nest. Burner is shutting off on limit if that's the case. Also if you have registers be sure they are all open. Just a starting point! Good luck!
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2007 Georgetown 370TS
aka - RAYNMKR
Driver: Charlie
Navigator: Sheri
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01-26-2011, 12:10 PM
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#9
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Site Team
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 9,850
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Check the rated capacity of that booster unit and also check the output voltage when running the furnace. Low voltage will cause the blower to run slow causing the sail switch to shut the unit down prematurely.
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Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
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01-26-2011, 12:52 PM
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#10
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Junior Member
Join Date: Jan 2011
Posts: 6
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Thanks for the input BamaRambler, but I forgot to mention I tried it hooked to my truck, which has a new 850 Cranking amp battery.Truck was running the whole time, had same results.
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01-27-2011, 09:12 AM
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#11
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Site Team
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 9,850
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If there's a blocked outlet duct it'll do the same thing.
You could also have a bad high limit cutout that's tripping prematurely.
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Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
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02-08-2011, 04:50 PM
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#12
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Junior Member
Join Date: Jan 2011
Posts: 6
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Checked all the ducting both inside and out, all clear.I'm wondering now if when I had the tank filled for the first time it wasn't purged properly.The sticker warning the propane tech to purge because it is a new tank has not been removed.The gas bar where I had it filled had a 18 yr old kid working, not sure he knew what he was doing.Anyway I hauled my trailer back down there yesterday, they told me they would purge and refill at no cost to me.But when I got there the manager informed me they could not purge my tank as it is an automotive style.(It's mounted underneath the floor unlike RV tanks on the tongue.)Anyone else think this could be my problem, maybe I'm getting air in the lines?
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02-09-2011, 07:52 AM
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#13
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Site Team
Join Date: Mar 2008
Location: Louisville, KY
Posts: 10,525
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If you've hauled it to the dealer, let them figure it out!!
You can lite your stove burners and watch them.
If they remain lit and burn steady I don't think it's a purging
issue.
My 2¢
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Peace!
Dan & Rita D
2017 Nissan Titan 5.6L King cab 4wd
2016 Evergreen Everlite 242RBS
29' empty nest model. Blue Ox WD hitch
(1 queen bed, large main cabin and huge bathroom)
Camping days 2010-53, 2011-47, 2012-41, 2013-41, 2014-31, 2015-40, 2016-44, 2017-63, 2018-75, 2019-32, 2020-41, 2021-49, 2022-43, 2023-66
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02-09-2011, 08:41 AM
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#14
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Junior Member
Join Date: Jan 2011
Posts: 6
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Quote:
Originally Posted by KyDan
If you've hauled it to the dealer, let them figure it out!!
You can lite your stove burners and watch them.
If they remain lit and burn steady I don't think it's a purging
issue.
My 2¢
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No stove in it, it's an enclosed snowmobile trailer.
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02-09-2011, 08:52 AM
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#15
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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Quote:
Originally Posted by KyDan
If you've hauled it to the dealer, let them figure it out!!
You can lite your stove burners and watch them.
If they remain lit and burn steady I don't think it's a purging
issue.
My 2¢
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It could still be a faulty regulator. The furnace is the number one user of propane by far. The stovetop burners will light long after there is not enough propane to fire anything else (though not well).
Think I might have a high pressure regulator (the red one) myself as I did not get a reliable switchover last night.
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Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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02-09-2011, 10:15 AM
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#16
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Senior Member
Join Date: Jul 2010
Location: Waynesville
Posts: 14,428
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Your Surburban furnace can be looked at anywhere that is a Surburban repair facility.I have a V nose Snowmobile trailer also,26 ft. You have at least a small Battery to provide 12v to the saftey breakaway for the (Brakes)! This is not large enough for the Furnace&blower! The short run time is related to Low voltage to the blower?Thcooking stove eitherrowing a high temp shutdown. Your tow truck has to have the pin hooked up for the Remote batt,just because the trailer lights work does not supply voltage to the remote Batt. Ps,mine does not have a cooking stove either! I hope you ride a (POLARIS) Youroo!!
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02-09-2011, 11:34 AM
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#17
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Site Team
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 9,850
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One way to tell if it's air is to either hook a DOT (BBQ) cylinder to the regulator and see if it works then or to hook a propane appliance to the outlet of the regulator and see if it works. Or you could do both and if neither works it's the regulator.
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Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
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