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61  Main Forum / General Discussion / Re: "TOW Haul" feature as shown on dash and trans light keeps coming on. on: October 11, 2013, 10:08:04 pm
I am curious about the transmission light problem, I went out and turned the key on and checked the manual and I don't see a warning light specifically for the transmission, can you describe it in a little more detail.

Bob  checked the manual again and the icon means service engine soon.  I just had it inspected and all the fluids checked and they were fine
before I left from home a week ago.  So don'tknow what else it could be....I am in Bluff Tn and will leave on Monday for Stone Mountain GA and stayed until the 16th when I will go into the Good Sam Rally at the Atanta Speedway.  

If the check engine light is staying on then the On Board Diagnostics System has detected a malfunction, the problem can be any number of things.  You need to get the code read on the OBD-II port under the steering wheel to see what the problem is.  A Ford dealer or an independent shop can do that, and most auto parts stores will do this or you can buy a code reader that will work with any newer vehicle.
62  Main Forum / General Discussion / Re: "TOW Haul" feature as shown on dash and trans light keeps coming on. on: October 10, 2013, 07:28:10 pm
I have the same PC as yours, 2010 2551, and I tow a Jeep Wrangler.  I use the "Tow Haul" feature because it changes the shift points so the transmission doesn't keep changing gears so much on hilly terrain.  I think it is easier on the transmission because it doesn't have to shift so often in those situations.  I especially like it when descending mountain grades to keep from overheating the brakes, it does a great job holding the speed on descents.  When cruising on flat freeways I turn off the "Tow Haul".  Don't really need to since the transmission will still go into overdrive in "Tow Haul" mode, but I don't like how it feels when coming to a stop in "Tow Haul" - hard downshifting.

I am curious about the transmission light problem, I went out and turned the key on and checked the manual and I don't see a warning light specifically for the transmission, can you describe it in a little more detail.

Bob
63  Main Forum / Tips and Tricks / Re: Electrical Schematics for PC's power systems. on: October 10, 2013, 03:53:22 pm
Keelhauler,

Thanks for putting together the schematic.  I think I have a good understanding of my 2010 2551 wiring but it seems different from your schematic in one area.  You show three 12V lines going to the generator through circuit breakers, what would that be for?  On mine, those circuit breakers feed three things directly without going through the converter fuses; the slide, the maserator pump, and I forget the third. 

Bob

I checked my 2010 2551 today and found the following.  The three circuit breakers shown going to the generator in your schematic go to the Sani-Con pump (20A), the slide motor (20A), and the third is the charging line from the engine battery/alternator (40A).

I hope this doesn't come across as being critical, I appreciate your schematic, just wanted to help it to be accurate if your PC is in fact wired like mine.

Bob
64  Main Forum / Tips and Tricks / Re: Electrical Schematics for PC's power systems. on: October 09, 2013, 11:35:44 am
Keelhauler,

Thanks for putting together the schematic.  I think I have a good understanding of my 2010 2551 wiring but it seems different from your schematic in one area.  You show three 12V lines going to the generator through circuit breakers, what would that be for?  On mine, those circuit breakers feed three things directly without going through the converter fuses; the slide, the maserator pump, and I forget the third. 

Bob
65  Main Forum / Photos / Re: Oak Mountain State Park near Birmingham AL on: September 30, 2013, 12:54:21 am
Beautiful photo, that's one for the brochure.
66  Main Forum / General Discussion / Re: ENGINE COWLING on: September 29, 2013, 12:33:04 pm
    One question,,,, you say wires and tubes,,,, are there some of these when you take the cowling off?
sparky

They are hanging down under the dash, on mine a few would get caught by the cowling if not careful.
67  Main Forum / General Discussion / Re: A New Banging Sound After Year #6 - In The B+ Cap Area on: September 29, 2013, 12:44:23 am
Ron,

How did you know where the roof sheet metal was? Is it cut to be close to the front of the cabinet?

Bob
Good question Bob.  It was just a guess on my part.  That is why I picked a dimension of 3" and drilled a pilot hole, placed a 2" finish nail down it to make sure metal roof material was there.  Maybe I could have gotton by with 2" from the cabinet opening, but I wanted to be sure I hit metal every time, and wasn't drilling holes near a metal edge.  I wanted to get into the "beef" of the metal roof for better anchoring.

Sounds like a good approach, I will go with 3" if and when my PC starts banging.  ThumbsUp
68  Main Forum / General Discussion / Re: A New Banging Sound After Year #6 - In The B+ Cap Area on: September 28, 2013, 06:31:02 pm
Ron,

How did you know where the roof sheet metal was? Is it cut to be close to the front of the cabinet?

Bob
69  Main Forum / General Discussion / Re: ENGINE COWLING on: September 28, 2013, 01:04:50 pm
Hi Sparky,

I have removed mine a few times.  Put the seats as far back as possible.  Remove the cup holder/storage module, there is a release tab on the bottom of the module and then you lift the module straight up.  I don't recall if you push up or pull down on the release tab, try to get a look at it first.  Release the four locking tabs and slide the cowling to the rear, when it clears the dash pick it up and rotate it so it goes between the seats to the rear.

Be careful to keep all wires and tube clear when installing.

Bob
70  Main Forum / General Discussion / Re: What is in the box between the propane tank and the frame? on: September 23, 2013, 07:32:24 pm
Bob, if I never primed prior, my generator would require excessive cranking to start.  So I don't know what more to say.

There is no hard fast rule for everyone because Onans seem to behave differently from one unit to another.  I suppose it comes down to finding what works best for your PC.

Ron, I think you are right in that each generator may behave differently.  My 2010 Onan was difficult to start after priming and after I read the manual regarding priming and starting (see below) I no longer prime and it now starts perfectly.  I was told to prime before starting and that is why I was doing it, but now I don't.  If someone is not satisfied with the way their Onan starts they might try it without priming if their manual reads as mine does.


PRIMING THE FUEL SYSTEM
If the genset ran out of fuel (gasoline models only)
prime the fuel system by holding the control switch
at STOP/PRIME for 30 seconds. (The status indica-
tor light will stay on while the pump is on.)


STARTING THE GENSET
Start the genset from the genset control panel or re-
mote control panel inside the vehicle (Page 1-4).
1. Push and hold the switch at START until the
genset starts. The status indicator light on the
switch flashes while cranking. It will stay on
continuously when the genset is running.
71  Main Forum / General Discussion / Re: What is in the box between the propane tank and the frame? on: September 23, 2013, 01:05:16 pm
I have the Onan 4000 generator and I was also priming before starting and had the same experience where it took three tries before starting and then would run rich for a short time.  I recently read in the Generator manual that the priming is to be done if the generator ran out of fuel, not every time.  I now do not use the prime and the generator starts on the first attempt.

Bob
72  Main Forum / General Discussion / Re: A New Banging Sound After Year #6 - Dead Center In The Headliner Area on: September 12, 2013, 05:32:35 pm
Anyone yet perform that test in driving their rig and feel for gasket-to-roof movement?

Ron,

Reporting on my test drive today from Taos to Chama, road was rough enough in places to give a good test.  I put my fingers between the cap and cab roof along the side and as far forward as I could reach.  I didn't feel any measurable relative motion between the two surfaces, if I really concentrated I thought I was detecting some movement but it was so small it was probably my imagination.

If you are detecting significant relative movement, then that sounds like the problem - loose screws popping with movement.  Keep us posted on what you find.

Bob
73  Main Forum / General Discussion / Awning quit working on: September 08, 2013, 04:40:02 pm
We are two weeks on the road and have been using the Dometic electric awning quite a bit.  Today it will not go out, I hear a click at the motor but no action either out or in.  I have pushed, pulled and twisted to be sure it isn't binding and checked all the fuses.

Any one have a similar problem or some suggestions.  I am in Santa Fe and will try to find a service center tomorrow.

Thanks, Bob

After some online research I found that the clicking is the brake releasing even though the motor doesn't run, probably a burned out motor.  I confirmed this by holding the switch and could then manually move the awning out and in.  I only moved it a foot in case the brake release quit working as well.

I found an RV service center nearby that I will contact tomorrow morning.  Frustrating that we have only used the awning less than 20 times in the past 3 1/2 years and it already has failed.
74  Main Forum / General Discussion / Re: A New Banging Sound After Year #6 - Dead Center In The Headliner Area on: September 06, 2013, 09:40:23 pm
Ron,

We are two weeks into our five week trip around the southwest, we are in Santa Fe for a few more days but I will check the movement between the cap and roof when we hit the road.  Our 2551 has 24,000 miles on it and I have not heard the noise you describe.  Could something have come loose behind the TV and is bouncing around?

Bob
75  Main Forum / Tips and Tricks / Re: Sound under bed in 2552 on: September 05, 2013, 11:22:27 pm
Thanks!
I never would have thought of the Inverter, especially since it is off where we are now camped.  It's very quiet here, so the fan is more noticeable.
Bruce

Bruce,

My 2010 2551 has the newer Xantrex inverter like yours, below is an old post of mine that addressed the same issue of the inverter fan running when not in use.  Hope this helps.

Bob



Yes Billy, I turn off the inverter at night by turning off the breaker that supplies 110vac to the inverter.  I too was bothered by the inverter cooling fan cycling during the night.  I did some investigation because it seemed strange that the cooling fan would run when the inverter was not being used at night.

On the 2551, the inverter is located under the passenger side bed and is mounted forward of the converter/breaker panel on the same wood panel.  First I had to determine if I was hearing the converter fan or the inverter fan.  The converter fan will run if you are plugged into shore power and are using a lot of 12vdc or are charging the batteries at a high rate.  You can feel the air flow in the grill on the converter/breaker panel when that fan runs which it turns out is not that often, and I have never heard it at night.  If you hear a fan noise from under the bed and you don't feel or hear the converter fan running, then it is the inverter fan.

The inverter cooling fan should run when it gets warm from working to create 110vac from the 12vdc batteries, although I don't hear it often when running it to watch TV since the current draw is low.  But I was hearing the inverter fan run when it was not in use.  I replaced the inverter (thanks Kermit) and the new one behaved the same.  So I contacted Xantrex a few times and finally found someone who explained that the inverter cooling fan is designed to come on periodically even when not in use to cool the internal switching relay that automatically switches from shore power to inverter power.  I guess the relay is "on" and passing the ac supply through the inverter when the inverter is off.

So, at night, if you switch off the breaker that supplies the 110vac to the inverter (not the breaker that comes from the inverter), the fan will not run.  You also have to turn the inverter control panel off or the inverter will now use the batteries to keep the TV and DVD player on standby.

Since I love a challenge, I decided to rewire the ac side of the inverter and installed a switch so that I manually put the inverter on line when needed.  So now if I want to use the inverter, I have to press a switch that I installed on the wood panel under the bed in addition to the inverter wall control panel.

Bob
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