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05-23-2020, 11:11 AM
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#1
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Senior Member
Join Date: Aug 2014
Posts: 836
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HWH Auto Level
'19 Phaeton 40IH. Auto level function and manual dump are currently inop. Both functions have been intermittent for last 2-3 trips. Manual level works fine. When auto level is selected the blue light illuminates, but nothing happens. If I select, manual dump nothing happens. Start engine reset/set parking brake no change. Checked for CB popped - none that I could find. Check connections on control panel - seem to be ok. Pulled both connectors and reseated - no change. On backside of control panel, there is a blinking red light just above an unused 6-pin connector. Manual says it should blink any time ignition switch is on.
Fortunately, we are in Red Bay, waiting to get to mechanic shop - hopefully Tuesday. Had hall of our little stuff fixed in express bay on Friday. Also waiting on paint shop and cabinet shop.
Any ideas on quick work around on manual dump or more trouble shooting, while we wait for service?
__________________
2019 Tiffin Phaeton 40IH
2024 Chevrolet Equinox RS
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05-23-2020, 04:32 PM
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#2
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Community Administrator
Tiffin Owners Club
Join Date: Sep 2013
Location: DFW, Texas
Posts: 21,517
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I just recently had the same issue with intermittent air dump and levelers. Mine turned out to be the main power solenoid on the HWH pump. If it's not making contact then no power is passed to the controls and the valves. There are two solenoids on the pump, the main power one on the left side and the pump solenoid on the right. Don't know if that's your issue, but a new solenoid fixed mine.
__________________
2017 Phaeton 40IH XSH Maroon Coral - Power Glide Chassis with IFS
Previous '15 Tiffin Allegro RED 38QRA and '06 Itasca Sunrise 35A
'16 Jeep JKU Wrangler Sahara or '08 Honda Goldwing
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05-23-2020, 05:44 PM
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#3
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Senior Member
Join Date: Oct 2004
Location: Clermont, Fl
Posts: 445
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Had similar issue, Service had me pull then reinstall the fuse in the pump compartment. This reset the system and got the hydraulics working again.
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Ron & Susan, Shihpoos Sandy & TooPoo
2018 Tiffin Phaeton 40IH
2019 Chevrolet Colorado Crew Cab 4x4
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05-24-2020, 04:22 AM
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#4
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Senior Member
Tiffin Owners Club
Join Date: Oct 2009
Location: Mt. Juliet, Tennessee
Posts: 130
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May try turning the chassis battery disconnect off for several seconds then back on. This sometimes resets the system.
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2020 Allegro Bus 40 IP XSP
2017 Phaeton 40 AH
2018 Chevy Equinox 1.5 toad
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05-24-2020, 03:55 PM
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#5
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Senior Member
Commercial Member
Join Date: Jun 2005
Location: behind the steering wheel
Posts: 2,571
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most intermittent operation is a bad connection
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05-26-2020, 01:17 PM
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#6
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Senior Member
Join Date: Aug 2014
Posts: 836
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Tech suspected bad ground on control panel - replaced control panel.
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05-26-2020, 03:41 PM
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#7
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Senior Member
Join Date: Jan 2017
Location: Augusta Georgia
Posts: 866
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I have auto level on my 2020 RED. When I hit auto level the passenger side jacks retract, the drivers side do an intermittent "whirring" sound like they are trying to but don't. I can retract manually. The air in the drivers side also deflates to 100-110psi, whereas the passenger side goes down to below 75psi.
Will be in Red Bay in 11 days and is one of the items on my list. Just happened Sunday when I took it back to my storage site after a trip to the Gulf and then a good washing on Sunday to clean off the salt.
__________________
Bob (retired Army CW4) & Brenda (Veteran Army Nurse CPT)
2020 Tiffin Allegro Red 37BA
2020 Ford F150 XLT 4x4 Air Force 1 braking system
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05-27-2020, 07:05 AM
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#8
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Community Administrator
Tiffin Owners Club
Join Date: Sep 2013
Location: DFW, Texas
Posts: 21,517
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Quote:
Originally Posted by boomersooner
I have auto level on my 2020 RED. When I hit auto level the passenger side jacks retract, the drivers side do an intermittent "whirring" sound like they are trying to but don't. I can retract manually. The air in the drivers side also deflates to 100-110psi, whereas the passenger side goes down to below 75psi.
Will be in Red Bay in 11 days and is one of the items on my list. Just happened Sunday when I took it back to my storage site after a trip to the Gulf and then a good washing on Sunday to clean off the salt.
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The pump does not run when the jacks retract. A solenoid valve opens and the return springs pull the jacks up. If you mean when you hit auto level the jacks don't EXTEND and all they do is whir then you may be low on hydraulic fluid. It's also possible you have a loose ground connection like previously posted. There are no passenger side and driver's side air tanks. You have a main tank and a reserve and it's normal for the pressure to drop in the main tank when you dump the air to level.
__________________
2017 Phaeton 40IH XSH Maroon Coral - Power Glide Chassis with IFS
Previous '15 Tiffin Allegro RED 38QRA and '06 Itasca Sunrise 35A
'16 Jeep JKU Wrangler Sahara or '08 Honda Goldwing
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05-27-2020, 01:29 PM
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#9
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Senior Member
Join Date: Jan 2017
Location: Augusta Georgia
Posts: 866
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Quote:
Originally Posted by Lt Dan
The pump does not run when the jacks retract. A solenoid valve opens and the return springs pull the jacks up. If you mean when you hit auto level the jacks don't EXTEND and all they do is whir then you may be low on hydraulic fluid. It's also possible you have a loose ground connection like previously posted. There are no passenger side and driver's side air tanks. You have a main tank and a reserve and it's normal for the pressure to drop in the main tank when you dump the air to level.
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Yes, extend, not retract. Sorry for the mistyping and thanks for correcting me. I assumed there was passenger and driver side air since the dash has air pressure gauges on the dash on the left and on the right.
Thanks for the education!!
__________________
Bob (retired Army CW4) & Brenda (Veteran Army Nurse CPT)
2020 Tiffin Allegro Red 37BA
2020 Ford F150 XLT 4x4 Air Force 1 braking system
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05-27-2020, 02:06 PM
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#10
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Community Administrator
Tiffin Owners Club
Join Date: Sep 2013
Location: DFW, Texas
Posts: 21,517
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Thanks for the photo of the new dash, love the looks of it. I can see where there would be confusion with one gauge on each side. On our Power Glide chassis, the main or primary tank supplies air to the rear brakes and the secondary tank supplies air to the front brakes and the air bags. I'm sure the Freightliner is very similar with your #1 and #2 tanks.
__________________
2017 Phaeton 40IH XSH Maroon Coral - Power Glide Chassis with IFS
Previous '15 Tiffin Allegro RED 38QRA and '06 Itasca Sunrise 35A
'16 Jeep JKU Wrangler Sahara or '08 Honda Goldwing
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