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Hurricane Furnace

Yahoo Message Number: 116499
Running furnace and getting strong diesel odor inside coach. I shut it down until I can find source of problem. I checked for holes or leaks around muffler and exhaust pipe connected to the furnace under coach and so far haven't found the reason. While running the furnace, I put my hand in front of the exhaust and feels like it is working ok too. Any idea what to check next? Think the muffler or exhaust pipe could be partially blocked causing backfeed?
Steve
2000 Intrigue
#11168

Re: Hurricane Furnace

Reply #1 –
Yahoo Message Number: 116500
Maybe it's worth checking your fuel return line.
You could have a leak and the furnace will run but excess fuel on it's way back to the tank gets pumped out.
I had the problem on a different coach and ended up with a huge puddle of fresh diesel under the coach.
Very embarrassing.

Dick Bogaard
AC Heritage '02
80904 SS

Re: Hurricane Furnace

Reply #2 –
Yahoo Message Number: 116501
Thank you, I will check it out tomorrow when I do a 2nd inspection. So far I haven't noticed any puddles but maybe the leak at this point is too small. I am not sure how you even find that return line...it looks like it runs from the furnace through a hole in the bottom of the furnace compartment, but when I look under the coach I can't find it. Maybe a fresh look at it tomorrow will be more productive.
Steve
2000 Intrigue
#11168

Re: Hurricane Furnace

Reply #3 –
Yahoo Message Number: 116502
One more question: there is a bleeder valve on top of the furnace in case any air gets in the fuel line. Does anyone know if that valve should remain open, or closed? Mine is not closed tight...the value is open somewhat. Thanks again.
Steve
2000 Intrigue
#11168

Re: Hurricane Furnace

Reply #5 –
Yahoo Message Number: 116504
Thanks, I will close it....do you think there is any possibility that was the reason for the strong diesel odor inside the coach?
Steve
2000 Intrigue
#11168

Re: Hurricane Furnace

Reply #6 –
Yahoo Message Number: 116505
Similar fuel problems have been written about here and on iRV2. The most often cited cause is deteriorating older fuel lines/hoses that are not compatible with the newer diesel fuels. The breakdown of the hose material can let air in to the fuel supply or let diesel fuel out, depending.

I just had mine checked six days ago and the fuel lines had been replaced by the previous owner. For what it's worth, the tech looked at the lines and saw "Parker" and deemed them to be good.

As to the bleeder valve; the tech told me and I'd read elsewhere, that it should be open 1/4 to 1/2 turn.

I'm having a problem with ours flaming out after a period of time. It renders a "Ignition Flame Out" error and quits. If we let it set for a time, it fires right back up. But if we repeat the process, the duration it stays lit before flaming out gets shorter.

I installed an air filter and when talking to the tech we speculated that it may be restricting air flow enough to kill combustion. So I will remove that and see what happens. Also, will change the little in-line fuel filter.

FWIW,

Dave M. 2002 Affinity #6130
Dave & Cathy M, 2002 Affinity #6103, 2018 GMC Acadia, Linux Mint 19.2

Re: Hurricane Furnace

Reply #7 –
Yahoo Message Number: 116506
If it is exhaust smell inside Coach, or outside down the street, could be the motor not providing enough rpm. You need to replace motor, or somehow check rpm to spec. It is not getting enough air. I have same problem now, will replace motor when I get home, done everything else. Smelly HydroHot :/

Greg
06 Magna

2006 Magna Rembrandt C13
2016 Jeep GC toad

Re: Hurricane Furnace

Reply #8 –
Yahoo Message Number: 116507
My 2004 Hurricane system has had that bleeder valve partially open for the past 14 years, and the furnace works great. Check with Hurricane techs. They are very helpful on all aspects of the products, and a good source of parts. Safe travels.

Jeff
04 Intrigue 42ft. Ovation
11630

Re: Hurricane Furnace

Reply #9 –
Yahoo Message Number: 116508
I agree. There should be no raw diesel fuel smell at all from your Hurricane. There has to be a fuel leak somewhere. I would be quite concerned if it were me especially if you smell it inside the coach.

Rich 2002 Magna

Re: Hurricane Furnace

Reply #12 –
Yahoo Message Number: 116512
I also recently had problems with my Hurricane unit flaming out. It turned out to be the fuel pump getting weak and not drawing enough fuel to light the flame. After three attempts it stops and gives the trouble code "7" for flame out. When I replaced the fuel pump (and replaced the fuel and air filter) I also replaced all the fuel lines inside the unit. They were very brittle due to the constant heat inside the unit. I also had OMC inspect the fuel line (and return fuel line for air bleeding) during a recent visit. They were fine, and my unit is working fine now. On my unit, the bleeder valve must be left open also, as it routes any air bubbles that might occur back to the fuel tank, so they will not affect the flame.
Bruce - 2003 40' Allure w/tag.

Re: Hurricane Furnace

Reply #13 –
Yahoo Message Number: 116513
Jeff is correct, many times the system operates best with the bleeder valve slightly open. Mine has been open for years as well. This should not cause any raw diesel fuel smell. I am assuming that the OP is talking about a raw diesel fuel smell, not exhaust. There should be none. It indicates a fuel leak somewhere. If there is a few leak at the actual Hurricane unit itself, that should be fairly obvious to detect.

Rich 2002 Magna

Re: Hurricane Furnace

Reply #14 –
Yahoo Message Number: 116592
Just to update on the raw diesel fuel odor when running hurricane. Fortunately we are now snowbirds in Florida and don't need the furnace, but on further inspection yesterday, I did find a leaking hose inside the furnace...very small leak but I imagine enough to cause the odor we have experienced. Will replace some hoses and hopefully all will be fine whenever we do need it. Thank you all for assisting me!
Steve
2000 Intrigue
#11168

Re: Hurricane Furnace

Reply #15 –
Yahoo Message Number: 116597
Could you share a pic or two of the furnace interior and exterior. I have a similar issues. Thanks