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hwh aux compressor

Do you have any info on where to look if the standby compressor is not coming on,  or how to check and make sure it is not when it should...i am getting yellow lights they go out if i start the engine,  but come back on,,, site is fairly level...dave  and wendy 99u320
Dave  and Wendy
99 U320, 05 Mini Cooper

Re: hwh aux compressor

Reply #1 –
On my 99 the yellow lights indicated that the coach was level checking and found it out of level. You should have air in the tanks and that would be enough or it will release air and lower the high side.  The 12 volt rarely ran on my 99 as I had no slides and I found all my leaks. 

There is a fuse on mine and if it runs too long it will pop the fuse but that is a 2001. I think they should be similar. Look and see if you are getting power to the pump first then troubleshoot the pump.  The yellow lights would stay on for about 30 mins till it re-leveled. If it is not doing that, it may be your HWH box not the 12 volt.
2025 Wanderbox Outpost 32 on F600 Expedition Motorhome
2015 Born Free Royal Splendor on Ford 550 nonslide version  for sale
Former Coaches  covering. 360,000 miles
1999 34 U270
2000 36 U320
2001 42' double slide U320
2018 Jeep Rubicon

Re: hwh aux compressor

Reply #2 –
Dave and Wendy,

I would test the compressor after the coach has been sitting for enough time for the tank air to be depleted.  I would turn the ignition key on but not start the engine.  Push the HWH Level button once, then push any down arrow to un-level the coach.  Then push the Level button a second time and turn the ignition key off.  You should then hear the compressor turn on to try to re-level. 
Regards,
Brett

'99 42' Foretravel Xtreme
'14 Brown Motorsports Stacker
'05 Chevy SSR
'02 BMW R1150R

Re: hwh aux compressor

Reply #3 –
On my 95 I was getting ready to pull the compressor as I had never heard it run in 4 years. The reason I hadn't yanked it yet is because its a real pain to do so - its mounted behind the Heart Freedom 25 inverter. The last time we leveled the coach was just not 'getting there' and after 5 minutes I shut the engine off. While I was hooking up power and water, I heard a noise I hadn't heard before. Opened the bay door and there was the compressor, running like a champ... I went back inside to start the engine and relevel, and it had leveled the coach the rest of the way and the compressor turned off!
The selected media item is not currently available. Dave Head & Megan Westbrook
Titusville, FL - The Great Outdoors
'98 270 buying this month
Toad is a 2018 F150 XLT

Re: hwh aux compressor

Reply #4 –
Dave - so are you saying it had always worked and you just didn't know it?  I've never heard mine run either is why I ask, but I've not really needed it to either and so haven't checked it out.  Where is the fuse they speak of?  The dash gauge has a white an a orange needle, what is the white one for?
1996 U270
Build #4846

Re: hwh aux compressor

Reply #5 –
I've worried about the desiccant and whether it might have burned up. I can only assume it has always worked. I'm not sure which needle is which. I assumed front and rear.
The selected media item is not currently available. Dave Head & Megan Westbrook
Titusville, FL - The Great Outdoors
'98 270 buying this month
Toad is a 2018 F150 XLT

Re: hwh aux compressor

Reply #6 –
Quote
I'm not sure which needle is which. I assumed front and rear.
1993 U-300
Red needle is front, white is rear
1993 U300, 6v92
build 4366
USAF retired, Flight Engineer, C124, C130
 ATP, A & E.  & ex AI

Re: hwh aux compressor

Reply #7 –
Dave,

I realize it is a pain, but it might be a good idea to pull it and clean all the electrical connections.  I never did like it when something "just started working" on its own.  All MH's are a pain to get to things, some worse than others.  My GV has hydraulic levelers which have their own issues, however they are less complex than the newer airbag leveling systems.
John Cooper
'91 GV 36'
Oshkosh chassis
Cat 3208T 300HP

Re: hwh aux compressor

Reply #8 –
Quote
Quote: Red needle is front, white is rear

So what we're saying here, I think, they're only for the braking system air, nothing to do with the hwh?  And apparently the front and rear braking has separated air system.  Sorry OP, I didn't mean to hijack your post.
1996 U270
Build #4846

Re: hwh aux compressor

Reply #9 –
Thank you all,  good advice...it seems it is working normally ,  I just expected it to be faster...Dave
Dave  and Wendy
99 U320, 05 Mini Cooper

Re: hwh aux compressor

Reply #10 –
Dave, don't feel bad. I had the same experience when I switched from the Hydraulic Jacks on my U225 to the Air Leveling in my U300.
The selected media item is not currently available.Kent Speers
Locust Grove, OK
1993 U300 SSE 40' (Restored at FOT 2009) Build 4323
720 watts Solar
6V92TA DDEC Silver Engine
2014 Subaru Outback