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Topic ClosedR-Pod 179 Furnace fan noise - Event Date: 17 Sep 2020

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Overland Pod View Drop Down
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Direct Link To This Post Calendar Event: R-Pod 179 Furnace fan noise
    Posted: 17 Sep 2020 at 7:29pm
Hello everyone, 

I have a very noisy fan on the furnace of my Model 179. Doe anyone have experience with solving the fan noise issue. The furnace works well but the fan sounds as if it is hitting something when the unit heats up. It is quite annoying when one is trying to sleep.

I'm open to all advice on getting access to the fan motor. I have tried to take it apart but have not been able to accomplish it.

Please help if you have experience with this problem.

Greg Heckaman
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Direct Link To This Post Posted: 17 Sep 2020 at 7:42pm
It is possible that there is something in there that the fan is hitting. Can you get something like a fiber-optic inspection camera to take a look in there to see what is hitting? One of the "As seen on TV" items is a "Lizard Cam." It is relatively inexpensive and may do the trick.
StephenH
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Overland Pod View Drop Down
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Direct Link To This Post Posted: 18 Sep 2020 at 12:36pm
Thanks for the idea. It is hitting something. I need to figure out how to get it apart.
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Direct Link To This Post Posted: 18 Sep 2020 at 12:37pm
Thanks for the suggestion. I will look into it
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Direct Link To This Post Posted: 18 Sep 2020 at 10:38pm
Might be as simple as using a compressor set to high psi and blowing air in there to see if you can dislodge something. Wear goggles when you do so - might stir up a bunch of dust. Wouldn't take much to make annoying noises (small leaf, etc).
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Direct Link To This Post Posted: 19 Sep 2020 at 9:28am
The motor is double ended and runs two blowers, one for external intake/exhaust and one for internal air circulation. Might be useful to try to determine which side is making the noise. 

If you can't get at whatever is making the noise its probably going to be simplest just to remove the furnace so you can put it on a workbench. Then disassemble it enough to get at the blower(s). Its not that hard to remove, take a look at this video to get the idea. 

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Direct Link To This Post Posted: 19 Sep 2020 at 10:08am
Save your battery, your propane AND your ears, get a catalytic heater.
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Direct Link To This Post Posted: 19 Sep 2020 at 10:15am
Originally posted by podwerkz

Save your battery, your propane AND your ears, get a catalytic heater.

If you like breathing combustion products and risking CO poisoning......
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Direct Link To This Post Posted: 19 Sep 2020 at 11:26am
Originally posted by offgrid

Originally posted by podwerkz

Save your battery, your propane AND your ears, get a catalytic heater.

If you like breathing combustion products and risking CO poisoning......


Not so.  I use a Wave3 catalytic heater.  Not all catalytic heaters are the same.  And we've been through this discussion MANY times before on this forum.

https://www.campingworld.com/camco-olympian-wave-3-catalytic-heater-19332.html
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Direct Link To This Post Posted: 19 Sep 2020 at 11:26am
If you're going to use an unvented propane heating appliance in an enclosed trailer, make sure you have a window open enough to let O2 inside in adequate amounts to sustain life, make sure your CO and smoke detectors are working well, and get really good medical insurance.  

We heat with a West Marine electric heater when we have 120vac.  Otherwise, when heating with LP we turn off the furnace at night and heat the trailer up in the morning while I'm making the coffee.  A good down comforter makes sleeping quite comfortable.  If it's well below freezing outside, enough to freeze the plumbing, it's not likely we'll be out camping.

Regarding the catalytic heater from Camping world, please note one of the warnings in the product description:  • For use in vented areas only
From the Consumer Product Safety Commission's study of catalytic heaters:
  • When the catalytic heater was operated in a closed room (ACH ~ 0), the oxygen was depleted from an ambient concentration of 20.9 percent to 8.8 percent. Because the catalytic heater can deplete the Oconcentration to such low levels, the heater poses a serious risk of hypoxia. The degree of hypoxia is further exacerbated by the moderate CO concentration and by an increase in the carbon dioxide concentration that accompanied the depletion of oxygen.

  • As the oxygen decreased in the chamber, the catalytic heater became less effective at converting the propane and oxygen to carbon dioxide and water vapor. This was reflected by an increase in the hydrocarbon concentration in the chamber, which ranged from 1,050 ppm to 13,440 ppm (5 to 64 percent of the lower explosion limit of propane in air). The unreacted propane further increases the degree of hypoxia.



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