Community Forums

Grandad5 · 11-16-2019, 05:08 PM

That was my plan this morning but as I stated, the fuse labeled Air leveling system was 20amp not 7.5 as expected. It is wire #274.
I did remove the fuse but nothing changed. The monitor on the dash still showing two red lights when ignition is on. Sooooo, this is either labeled incorrectly and I believe it is correct, I'm running out of options.
I will try to contact AZPETE, thank you

Smitty77 · 11-16-2019, 05:51 PM

Quote:

Originally Posted by Grandad5

That was my plan this morning but as I stated, the fuse labeled Air leveling system was 20amp not 7.5 as expected. It is wire #274.
I did remove the fuse but nothing changed. The monitor on the dash still showing two red lights when ignition is on. Sooooo, this is either labeled incorrectly and I believe it is correct, I'm running out of options.
I will try to contact AZPETE, thank you

AZPETE - Was nice enough to take my call on Wednesday, as what I expected to see, I was not seeing... Very kind to share, patiently, his knowledge... Hope he can help you too.

I will share that I too pulled my fuse (Step/Leveling) 7.5A fuse for me. And my HWW lights stayed on. BUT, I did not look to see if the HWW Box lights had gone out. (My HWW Box is also under the front derivers seat cabinet. Others I've seen in the back fuel filter cabinet.)

In my case, the the sway bar moved so much in non flat road conditions, I was concerned about other welds breaking on the Driver's side. Thus only tried one time to continue my 12 miles or so to the final destination. Very fortunate that the place, RV Specialists of San Diego, worked me in and got me out before the close of business...

I do know the fuse amp pull trick, and will play around some when not on the side of a busy road (My back end, of myself vs the coach, in the lane of traffic. I was parked in a bike lane, and kept waiting to be taken out by someone cruising in this lane

!), to practice the technique of manual leveling and pulling the fuse!!!

---

Please update us when you know the final answer to your problem... And best wishes that it's a simple issue!!!
Smitty

IASM · 11-16-2019, 09:11 PM

whats puzzling is the hwh panel would be in the off position and defaulting to the chassis air system so no lights would illuminate in the off state as far as i would think. Your observing the leveling indicators are coming on while in gear and brake off?

phays · 11-17-2019, 05:12 AM

Grandad5,
You haven't said if you can bring the front to ride height using just the control panel with the engine running, with the parking brake on and transmission in neutral. Can you bring it to ride height manually? And will it stay at ride height if you leave the brake and transmission alone? If not then you need AZPETE.

If the coach stays at ride height after doing the above, leave the brake on and transmission in neutral and remove the 7.5 amp fuse mentioned and the coach should remain at ride height and allow you to travel.

The 7.5 amp fuse is in the HWH control box hidden someplace on your coach. On my Magna the box is in my electrical bay on the passenger side behind the front wall of my first bay. Your control box is probably located someplace different. Another Intrigue owner of your vintage may know where it is if you don't. Removing the 20 amp fuse you've located may do the same but I don't know.

We've all talked about the ride height valve but a faulty HWH solenoid can cause the same problem. A bad HWH valve caused my rear ride height to be too low on one side but I could still set the coach to ride height manually and remove the 7.5 amp fuse and remain at ride height.

dhetrick2 · 11-17-2019, 08:35 AM

Quote:

Originally Posted by Grandad5

That was my plan this morning but as I stated, the fuse labeled Air leveling system was 20amp not 7.5 as expected. It is wire #274.
I did remove the fuse but nothing changed. The monitor on the dash still showing two red lights when ignition is on. Sooooo, this is either labeled incorrectly and I believe it is correct, I'm running out of options.
I will try to contact AZPETE, thank you

I believe you are looking at the wrong fuse box, your HWH control panel should be behind the dash on the passenger side. There should be a panel in front of the passenger seat you can remove. On my coach it's a cabinet. I was just at HWH several weeks ago and had my control panel tested and several things replaced.

Grandad5 · 11-17-2019, 09:20 AM

The more I read about this issue, I am thinking it is the solenoid.
As I can't see any markings on this valve (located in front of the steering axle about the middle of the coach)any ideas of which one of these solenoids would be the one (or two) to replace? Are these only available only from HWH?
I was looking in the service bay as the manual lists the air leveling there (pic attached) but I will see if I can find the other fuse box that phays mentioned.
I sincerely appreciate your assistance with this matter.

gpounder · 11-17-2019, 11:28 AM

I just fixed a leak in one of my solenoids. In doing so I ordered a new part from HWH and replaced it. In doing so I have the old one and decided to take it apart.
It is a very simple devise and you too can take it apart.

Here is how to check it. First remove it, unclip the wire and do one at a time, do not mix up the wires. The solenoid simply unscrews. Check the coil with a 12 volt battery, you will hear a snap, if this fails the coil is bad.

To disassemble the solenoid, remove the nut keeping the coil in place, slide off the coil. Place the large part in a vice and use some vice grips on the shaft the coil came off of and remove. Note there is a plunger and spring so don't loose the spring.

Now it is open as seen in my pictures. I flipped the large main housing around so you can see both sides.

So if the coil is good then you just have o-rings and a seat on the plunger that can go bad. If the 2 large o-rings leak then you can see that before you remove it, use soap water. But the small o-ring will let air move between chambers. You can buy o-rings at the hardware store. If the seat is bad then you must buy a new one.

In my case in the picture the loose o-ring was split and it was leaking but know my system was working, just loosing air overnight.

If you do order it the smaller solenoid 3/32 orifice is a #RAP1940
More at https://www.hwhcorp.com/mr60200a_e_sol.html

Grandad5 · 11-17-2019, 07:27 PM

I found through HWH control box in the passenger side of the coach behind the dash panel.
There I found a 7.5 amp fuse labeled "travel" I removed it and it made no difference. It still bounces badly.

I tried running the system through it's features and the system will come on, level it's self, I can dump the bags but when I place the coach in drive, the two front red lights come on.

I tried hitting the raise feature with it in drive and the two lights will go off but it makes no difference to the coach as it still bounces.

gpounder · 11-17-2019, 07:49 PM

Can you go back to basics.
Is your rig at the normal height and in travel mode with the LED out.

Do you have a reset button, if so does that help? I use mine all the time to kick it out of whatever mode it is in, then see it go to travel mode.

Can you describe the bouncing.

Are you feeling a knocking when you bounce?

Beware if the ride height is not right you can rub your front tires against the wheel well when turning.

dons2346 · 11-17-2019, 08:05 PM

You are not following the correct procedure.
1. Set the air brake

2. Start motor
3. Ensure you have full air in the tanks.

4. Use panel to bring coach to ride height.
5. Pull the 7.5 fuse

Pulling the fuse first does nothing. Putting the coach in drive before you pull the fuse causes the coach to return to the previous condition. Don't worry about the lights.

Grandad5 · 11-17-2019, 08:53 PM

Okay, dons2346, thanks,.
I'm pretty sure I had it running at some point today when I removed the fuse but I'll make sure I do it in that sequence in the morning. If that would allow me to drive it, it will make it much easier to work on as it's not in an ideal location to be worked on.

Gpounder
Is your rig at the normal height and in travel mode with the LED out.
I believe it is at normal height. As I stated, I can dump the air and it seems to level correctly.

Do you have a reset button, if so does that help? I use mine all the time to kick it out of whatever mode it is in, then see it go to travel mode.
I do not have a reset button. The diagram of the panel on the dash shows a reset button but mine doesn't have one. I even took the panel out today to see if a reset button was behind it but.....no reset button.

Can you describe the bouncing.
Well it just feels like it has no suspension in the front. If I am going slow (15mph or so and hit any kind of bump from the road, it will bounce up & down.

Are you feeling a knocking when you bounce?
No sir.

Beware if the ride height is not right you can rub your front tires against the wheel well when turning.
Thanks but I won't be driving it until I can fix this as it's unsafe as it sets tonight.

Smitty77 · 11-17-2019, 09:46 PM

Quote:

Originally Posted by dons2346

You are not following the correct procedure.
1. Set the air brake

2. Start motor
3. Ensure you have full air in the tanks.

4. Use panel to bring coach to ride height.
5. Pull the 7.5 fuse

Pulling the fuse first does nothing. Putting the coach in drive before you pull the fuse causes the coach to return to the previous condition. Don't worry about the lights.

I have to agree that the above steps are your best bet of the easiest way to get yourself back into a traveling mode of driving. This will allow you to then work the issue(s) of what might be the problem(s) at a more convent time and location.

Do the steps above... After you pull the fuse, if you still have your coaches air bags fully inflate or deflate - then you know it's a deeper problem then just the Ride Height Valve not working for you... And heck, if you're lucky - you should be able to pull out and go!!!

Still have my fingers crossed that Don's above steps, will get you able to move semi normally again...

Best,
Smitty

gpounder · 11-18-2019, 08:52 AM

I am not an expert on HWH, just know enough to be dangerous.

I use the reset to push the system to be off and allow the air tanks to fill the air bags. As I understand the system the airbags are leveled by the leveling valve but are interrupted by the HWH system.

You say the ride height is correct but your bouncing not feeling any bump in the bounce. The bump could have been bottoming out or extending to limits but you say no.

So here is my thinking, one of the solenoids is not closing allowing air to move back and forth between the tank and air bag freely, kind of like a blown shock absorbed. When I rebuilt a valve I saw a picture of how junk could keep the valve from sealing.

As for the LEDs I can't help but can say if you can't find a fuse then pulling the battery cable will reset it for sure. The House power button will not disconnect it.

Grandad5 · 11-18-2019, 08:21 PM

I did get it to ride height, pulled the fuse and I could drive it. Thank you all so much. I seemed to take the hard route sometimes.

Took it to a friends shop with a pit so getting under it was much easier. I replaced the fuse and the airbags deflated.

Followed procedure again, pumped the bags, removed the fuse and it held.

I believe I may have found my issue.

I have one coming from Freightliner, should be here tomorrow.

I'll let you know how this comes out but again, thanks for all your help.

Respectfully

G5