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Old 11-15-2014, 08:42 PM   #1
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Furnace problem

Hello everyone it is about 30° where I am today I had my furnace on set to about 60 I heard a pop Pop pop kind of noise from outside now when I turn my heat on nothing but cold air did my pilot go out if so how do I re-light it or can it be something else also this is a brand-new unit have use the heat several times never had a problem and have plenty of propane

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Old 11-15-2014, 09:33 PM   #2
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Cola ny, please tell us what kind of rig you have.


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Old 11-15-2014, 09:44 PM   #3
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Hello Jerry I have a phantom made by Nexus 30ft.I checked all The breakers and the fuses they all show good. I heard popping like the furnace was bogging out. My first thought somebody was knocking. The fan and blower work but there is no heat coming out
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Old 11-15-2014, 09:54 PM   #4
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When I run the generator I have heat but when I use propane only no heat
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Old 11-15-2014, 09:58 PM   #5
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No pilot light in a furnace, there is a circuit board that may have gone bad.
Have you turned the furnace on and listened to see if you can hear the unit trying to light? The blower won't run till the burner is lit.
It should try lighting about 3 times, then quit.
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Old 11-15-2014, 10:09 PM   #6
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After running the generator for about a 1/2 hr to get heat I shut the generator off waited 10 minutes and then put the furnace on I seem to be getting heat now I notice when I lost heat my battery supply were down to 1/3 can that be the reason for the furnace not given heat because of low battery I'm new to this bear with me
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Old 11-15-2014, 10:11 PM   #7
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Bare with me not beer lol
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Old 11-15-2014, 10:11 PM   #8
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Have you filled the propane tank lately? On our last trip, I needed propane at a campground. The next time we needed the furnace, I was getting a swooshing sound as the furnace tried to light. Turns out that the attend entry did not turn the tank back on or at least not much. Turned it on full and the problem went away.
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Old 11-15-2014, 10:21 PM   #9
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Yes I did have a refill just recently and I did check that and The valve was turned to open. I'm hoping that it was a low battery issue like I mentioned i run the generator to get heat I shut it off 10 minutes later I turn the heat on with propane only and it seem to work
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Old 11-16-2014, 05:32 AM   #10
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propane on and line vented (turn stove burner on and light it)
not sure why you get heat when using generator???? most of the furnaces I'm familiar with all use propane to heat and are not shore power/generator dependent.
could it be the pilot won't light on demand and that's usually the control board.

I had one brand new--- not work because of control unit/sail switch, won't stay lit, etc.
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Old 11-16-2014, 08:17 AM   #11
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If you are boon docking and running your furnace it will drain the battery fairly quickly if it's that cold outside, depending on your battery bank. The furnace does need a minimum voltage to run and minimum airflow.

I believe low batteries was your problem. You will have to run generator enough to keep batteries charged. Good luck
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Old 11-16-2014, 08:25 AM   #12
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Ditto the low battery. Low battery power means the blower speed is less than optimal thereby not closing the sail switch. The sail switch, when satisfied, opens the gas valve.
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Old 11-16-2014, 08:31 AM   #13
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Lights and runs on generator power...won't light and run on batteries. ...yup batteries to low for the fan the move the sail switch that opens the gas valve. Igniter will also be weak with low batteries.
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Old 11-16-2014, 08:56 AM   #14
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And one more point. The fan WILL RUN FIRST for a few seconds tripping the sail switch, then the ignitor will start clicking(an electrical arc) then gas will flow and the furnace will fire.


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