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HVAC, Air Conditioners, Aqua Hot, Primus, Webasto, Chassis Heaters, Furnaces and Water Heaters Questions and information about the wide variety of Heating and Air Conditioning as well as Water Heater systems available are discussed here.

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  #1  
Old 10-19-2013
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Default Hurricane Leak

I've had a small leak in the boiler fluid in my Hurricane for at least a few weeks. It tends to manifest itself only when the fluid gets really hot, and then it drips down onto the insulation around the exhaust pipe, where it steams off with a bad smell.

Today I realized I could get a small look into the box by removing the top, not an easy chore in itself. Then you can only look using a mirror. I fired things up, then saw fluid dripping off the underside of the floor of the coach. Further inspection showed a pinhole leak in a short hose that runs between the pump and the back center of the boiler.

Because it is down below other hoses and way back in it is hard to get to. Others here suggested wrapping it, but I didn't feel I could get at it well enough to do that. My thinking is that I can get the hose clamps off, slit the ends and remove it, then get a new piece. It won't be easy, and I don't see any way to avoid losing a bunch of fluid into the box. Just now as I was looking at the picture I produced (from the manual) for posting here I realized there might be the possibility of removing the top hoses and then getting at the leaky one. There would still be two hoses close under it that might make it hard to wrap. What are your thoughts about all of this?

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Don Bradner
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2015 Jeep Grand Cherokee
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  #2  
Old 10-19-2013
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Cliff and I can have that unit out in an hour!
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  #3  
Old 10-19-2013
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If you're not joking I'll take you up on it!
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2015 Jeep Grand Cherokee
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  #4  
Old 10-19-2013
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Quote:
Originally Posted by DonB View Post
If you're not joking I'll take you up on it!
I have had one out before,and so has Jim B.
I'm sure we can help get it out!

Cliff and i took his out in a parking lot in no time at all.
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  #5  
Old 10-19-2013
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I'm just happy for any help I can get.
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  #6  
Old 10-19-2013
Dan & Cindy Dan & Cindy is offline
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Don, my Hurricane also had a leak. I couldn't locate it so I took my heater out for bench testing (PIA!!). Turned out my leak was in the same hose as yours but it was the clamp as I recall.

If you take the unit out completely, change the brushes in the circulation pump motor. I've had to change mine twice. It can be done by removing the side panel but it is not easy. The first set were OEM brushes that cost about $60 for the pair. The next batch came from Grainger (p/n 1YNR3 6 pcs for $72).
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  #7  
Old 10-19-2013
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Thanks for the number. In typical inflationary fashion Grainger online currently says those are now $82.15
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  #8  
Old 10-21-2013
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OK, with some help (and a wealth of supervisors) the job is done. All buttoned up, no leaks I can find, and most of the coolant that leaked has been steamed off. Thanks to all, and the next time (if there is one) I will know what to do.
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Current: No RV at this time
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Prior: 1990 WB40 "Blue Thunder"
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  #9  
Old 10-22-2013
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Seen here this piece of the defective hose looked good on the outside.



When it was opened up you can see the damaged condition and green residue found on the inside.


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  #10  
Old 10-22-2013
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I had some "boiled coolant" smell last night. I hope it was just residual stuff steaming off - I would prefer not to get back into that thing again right away.

On the positive side, once I've done something like pulling this unit it doesn't scare me so much to do it again!
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Current: No RV at this time
2015 Jeep Grand Cherokee
Prior: 2004 M380 Double Slide
Prior: 1990 WB40 "Blue Thunder"
My location: www.bbirdmaps.com/user2.cfm?user=1
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