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Old 08-11-2019, 01:22 PM   #1
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Question HWH aux air compressor

2005 NEWMAR ESSEX

I recently started working on the auxiliary air compressor.
Ever since I've owned the coach it never automatically kicked in to air -up.
If i manually press the dash button it starts but you cant shut it off. It just keeps running until i pull the inline fuse.
I recently pulled the cover on the pressure switch and touched the plastic blade up and it shut off. My questions are;
is there a few tests I can do to locate the problems.
Sal
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Old 08-11-2019, 02:13 PM   #2
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See if any of these air pressure problems help solve your problem link to ESSEX Owners in this link.
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Old 08-11-2019, 02:20 PM   #3
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Check to see if the "compressor Unloader(spitter) valve" is defective..
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Old 08-11-2019, 02:27 PM   #4
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Quote:
Originally Posted by airconsal View Post
2005 NEWMAR ESSEX

I recently started working on the auxiliary air compressor.
Ever since I've owned the coach it never automatically kicked in to air -up.
If i manually press the dash button it starts but you cant shut it off. It just keeps running until i pull the inline fuse.
I recently pulled the cover on the pressure switch and touched the plastic blade up and it shut off. My questions are;
is there a few tests I can do to locate the problems.
Sal



Hey Sal, I've never tried to Air Up with the little compressor. I'm not sure it has enough capacity. Mine has come on when I've raised the coach above the ride-height limits (manual operation) but I don't recall how it behaved. I assume you have the same "special" HWH 2000 system with air suspension, hydraulic jacks, and extra air leveling while parked. HWH hyd. ram on the gen slide.
Do you have the original Essex manual?


Bruce
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Old 08-12-2019, 07:22 AM   #5
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Quote:
Originally Posted by saddlesore View Post
Check to see if the "compressor Unloader(spitter) valve" is defective..
Which one would that be?
I've pulled off the 2 other small plugs one at a time.
1 plug when i plug it back in I here a click and air rushing through the ;ine.
The other one nothing happens either way, no sound no action at all.
Sal
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Old 08-12-2019, 07:27 AM   #6
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Quote:
Originally Posted by bruceisla View Post
Hey Sal, I've never tried to Air Up with the little compressor. I'm not sure it has enough capacity. Mine has come on when I've raised the coach above the ride-height limits (manual operation) but I don't recall how it behaved. I assume you have the same "special" HWH 2000 system with air suspension, hydraulic jacks, and extra air leveling while parked. HWH hyd. ram on the gen slide.
Do you have the original Essex manual?


Bruce
Bruce,
Not trying to air-up the whole system .
Just trying to get it to refill when low when on auto level.
Can't find any info that came with the couch. all stickers on unit are unreadable.
I have all the equipment you have in your coach.
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Old 08-12-2019, 07:54 AM   #7
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Thomas AP32800

https://www.hwhcorp.com/mr055230.pdf
Compressor Assy
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Old 08-12-2019, 07:59 AM   #8
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Hwh-link

https://www.hwhcorp.com/ml11428.pdf
HWH-INFO
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Old 08-12-2019, 09:53 AM   #9
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http://www.hwh.com/ml32985.pdf


Doc AP32517 is our system.


Full disclosure: I have never tried Air Leveling. I have always parked with the system dumped and occasionally use jacks. I am typically on level sites.
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Old 08-12-2019, 04:17 PM   #10
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Quote:
Originally Posted by airconsal View Post
Which one would that be?
I've pulled off the 2 other small plugs one at a time.
1 plug when i plug it back in I here a click and air rushing through the ;ine.
The other one nothing happens either way, no sound no action at all.
Sal
this is on ours, went bad and 12v compressor ran continuously until it fried the pump & motor.
The pic's are side ways.. sorry
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Old 08-13-2019, 06:59 AM   #11
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hwh

Thanks for the photo's.
Mine looks the same except my part looks smaller.
I'll check it out.


Sal
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