Skip to main content ↑ ↓
Topic: HWH won't go into travel mode (Read 573 times) previous topic - next topic

HWH won't go into travel mode

I started it up and let the coach idle for about 20 min - the air light blinking really fast the whole time.  I'm trying to understand the HWH system, I found a couple circuit boards, one yellow light is on, another red one.  I assume one at least is a blown fuse, not sure what the other would indicate.  Primary and secondary air pressures were good.  Didn't hear any obvious air leaks.  Any ideas?

Steve and Cassi
2007 Foretravel Nimbus 42'

Re: HWH won't go into travel mode

Reply #1 –
Steve your system is totally different than mine so I can only give you some general pointers. First of all when you say it won't go into travel mode are you just talking about the light that says travel mode? What are the airbags actually doing? What happens when you press the up and down buttons?
I just looked again and saw that you have a button that says travel mode. On mine it just does that automatically when you turn the system off leveling mode and air pressure is over 90 lb. But that's all the light means on my system. You still have to check and make sure the airbags are properly inflated.
My next thought would be rebooting the system which would require either pulling the power harness off or some other way to disconnect power from it that would be with the coach off.
Check the fuse and make sure they're good and if not replace.
'99 U320 40 WTFE
Build #5462,
1500 Watts Solar 600 amp Victron lithium
2012 Jeep Grand Cherokee Overland Hemi
Instagram bobfnbw
Retired

Re: HWH won't go into travel mode

Reply #2 –
Do you have a HWH reset button next to your left arm (side)?  If so try that.

Air parking brake definetly on?  Salesman swith by door in correct postion?  Transmission in neutral?  Step on brake peddle a couple of times? Tried re-leveling? Raised front and back a little to see if that works?
Dan - Full timing since 2009
2003 U320 40' Tag 2 slide

Re: HWH won't go into travel mode

Reply #3 –
I had a similar issue last fall.  Ultimately I called HWH and a tech called me back.  The tech was very patient and helpful.

After checking that I could raise coach in all four corners and that the coach was essentially level, although not at ride height we went looking for a blown fuse.

The tech had me check the infamous 7.5 amp fuse.  The picture of the aluminum boxes you posted looks like mine.  The tech had me separate the aluminum boxes on the right....that is most outboard.  The fuse was in a row of fuses in the second (inner) aluminum box.  To separate the two boxes you have to work the "black rubber band" such that the two aluminum boxes can be separated.

Once separated, the outer box has enough cable to set it down in the bay.  The  tech did warn not to allow any of the circuit boards contact any metal and short out.

In the second/inner box was a row of fuses with a 7.5 amp fuse.  The tech had me take a meter and contact one of the metal points on the top of the 7.5 amp fuse with the positive probe and then contact a good ground with the negative probe.  I believe the ignition must be on for this step.  I contacted the aux. compressor for a good ground.  One side of the fuse had voltage and one did not.  Bingo!  Pulled the fuse and it was blown.  I replaced the fuse and the coach went to ride height and the travel light went on.

The difficult part is reassembling the two aluminum boxes and getting the "black rubber band" in place.

I still do not know why the fuse was blown.  I now carry a good supply of fuses.
Tom and Lisa

2003 U320 38' PBBS
Build No. 6217

Re: HWH won't go into travel mode

Reply #4 –
Don't have your year coach, but HWH has a pretty good reference library available on their website.  You might check that out for troubleshooting help specific to your year and model.

Rich
Rich and Peggy Bowman
2002 U270 3610 WTFS, build #5939--"Freedom"
2022 Jeep Grand Cherokee Summit 4xe
SMI AirForceOne brake system
PakCanoe 15

Re: HWH won't go into travel mode

Reply #5 –
Try releasing your park brake. You said your air light is blinking so do your have air pressure. It won't
go into travel mode until you have sufficient air pressure.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: HWH won't go into travel mode

Reply #6 –
On my coach, the fast flashing yellow "air" light indicates the system is in auto-level mode.  To go into travel mode, you have to have all slides in.  If it thinks any of the slides are out, it will not go into travel mode.  I'd start with running all slides out and back in again and see if it will go then.
Keith
2003 U320 38' #6197

Re: HWH won't go into travel mode

Reply #7 –
The one time I had trouble with my previous Nimbus it was the rear bedroom slide not retracted sufficiently. I had recently picked it up and wasn't aware of the process of watching the red light at the slide switch and wait for that light to go out BEFORE letting go of the switch. It turns out the thick bedspread was limiting the return of the slide...  As Keith says try extending and returning the slides and carefully follow the instruction on the key/switch panel as an easy step to eliminate that.
Best of luck...
Tyson
Tyson
2004 295 3610 WTFS
2010 Honda CR-V
Motorcade #18344
AA1DS

Re: HWH won't go into travel mode

Reply #8 –
Turn the Switch on the side of the Silver motherboard boxes to 220... Once that is done it will turn off the fail safe .. I think it might be a fuse like mentioned and the boxes are double stacked... but try the Brake switch on/ off then try again... If you cant get it then bypass until you can figure it out but if a fuse is blown it wont matter on the bypass
2002 U320 36' Single axle  MOST MODED IN HISTORY SO MUCH ITS ALMOST ILLIGAL
2 slides ( living room and bedroom)
undisclosed
male
female
genderless
nonbinary
transgendered

Re: HWH won't go into travel mode

Reply #9 –
Quote from: twestrup –
I had a similar issue last fall.  Ultimately I called HWH and a tech called me back.  The tech was very patient and helpful.

After checking that I could raise coach in all four corners and that the coach was essentially level, although not at ride height we went looking for a blown fuse.

The tech had me check the infamous 7.5 amp fuse.  The picture of the aluminum boxes you posted looks like mine.  The tech had me separate the aluminum boxes on the right....that is most outboard.  The fuse was in a row of fuses in the second (inner) aluminum box.  To separate the two boxes you have to work the "black rubber band" such that the two aluminum boxes can be separated.

Once separated, the outer box has enough cable to set it down in the bay.  The  tech did warn not to allow any of the circuit boards contact any metal and short out.

In the second/inner box was a row of fuses with a 7.5 amp fuse.  The tech had me take a meter and contact one of the metal points on the top of the 7.5 amp fuse with the positive probe and then contact a good ground with the negative probe.  I believe the ignition must be on for this step.  I contacted the aux. compressor for a good ground.  One side of the fuse had voltage and one did not.  Bingo!  Pulled the fuse and it was blown.  I replaced the fuse and the coach went to ride height and the travel light went on.

The difficult part is reassembling the two aluminum boxes and getting the "black rubber band" in place.

I still do not know why the fuse was blown.  I now carry a good supply of fuses.

Would you happen to have taken any pictures? :-). Also - what type of fuse?  I would like to add some to my spares supply..
Scott Powell
Doylestown, Ohio
2002 U320 3610 WTFS

Re: HWH won't go into travel mode

Reply #10 –
Unfortunately I did not take pictures.

The fuses are mini spade type.
Tom and Lisa

2003 U320 38' PBBS
Build No. 6217
 

Re: HWH won't go into travel mode

Reply #11 –
Here are some pictures:

1: Shows the two boxes in the large bay on the driver's side
2: Shows the side of the stacked boxes on the outside....nearest the street.  I separated the first two boxes (the one closes to you from the next box) by prying the black band which holds the two boxes together
3: Shows the first box separated from the second box
4: Shows the row of fuses.  The 7.5 amp is the one that caused the problem.  With the ignition on, test both sides of the fuse (little tabs on either side of the 7.5 to a good ground. 
5: Shows the side of the box and the black band that must be reattached to hold the two boxes together.  This proved to be the most difficult part of this project.


Tom and Lisa

2003 U320 38' PBBS
Build No. 6217