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12-19-2009, 08:13 PM
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#1
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Junior Member
Join Date: Dec 2009
Posts: 5
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HWH Jacks' Design Flaw
I have a newer 625 series HWH system (installed Apr 16 2007) and after 14 months and just 9,000 miles the system started to flicker jacks down during travel. Further troubleshooting revealed that one component on the control board came loose from its solder on the board.
HWH gratefully replaced the board (even though it was more than 12 months) however the same thing happened again about 15 months and about 7,500 miles later. After checking the board I found the same component loose (by applying slight pressure to the component the jacks down light went off). This component is suspended horizontally on the board and road bumps and jolts break the component loose from its solder joing. After removing the control box I found that the component had been replaced (very obvious manual solder joint and excessive heat to the joint and trace).
So it is obvious that HWH is fully aware of the problem but after several phone calls and e-mails I have been left out in the cold without a response.
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12-20-2009, 11:37 AM
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#2
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Senior Member
Monaco Owners Club
Join Date: Mar 2000
Location: Yuma Arizona USA
Posts: 2,996
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Why wait for them? If you have it out re solder the component then put a drop of glue between the board and the component so it does not happen again. Can't believe HWH didn't think of that.
__________________
Brian, Loretta & Lucy (Golden Retriever)
2008 HR Endeavor 40 PDQ , ISL 400
2010 Dodge Ram 1500 Toad
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12-21-2009, 05:16 AM
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#3
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Junior Member
Join Date: Dec 2009
Posts: 5
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Well they kinda did.....they added some silicone on two sides of the radial drum core, between the RDC and two ceramic resistors, but since this was done at 3 and 9 o'clock and the solder points at 12 and 6 o'clock, the 12 o'clock still failed. Turns out, after I removed the RDC I found that the joint did not fail, the lead broke. I can't use the original RDC since the lead broke off inside. Once I procure one (can't seem to find this one RDC10-331K) I was going to do exactly as you describe, especially since there are no trace lines on the front of the board underneath the RDC mounting area!
Great minds think alike, thanks.
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12-25-2009, 07:30 AM
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#4
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Senior Member
Join Date: May 2003
Location: Winter Haven Brownsville, TX
Posts: 1,143
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Army1sg,
I have been trying to revive a dead 625 panel for a while. I have replaced a voltage rectifier and 2 diodes and jumper-ed a burnt trace wire. The panel will light up but not deploy jacks yet. I will check the RDC for a bad solder joint or open lead. I have been operating Jacks and slides with a simple box with switches I made up but want to get the board working properly. I may still end up getting a new one from HWH. Please let us know if you locate a source for the RDC's.
__________________
Wayne & Kathy
05 Alpine 40FDQS #75330 Towing 24' car hauler, 2012 Spyder, 2003 Harley FatBoy
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12-25-2009, 12:08 PM
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#5
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Member
Workhorse Chassis Owner
Join Date: Jan 2009
Location: Zephyrhills, Florida
Posts: 49
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RDC ?
I was an electronic tech for 35 years (15 years ago now), what is an RDC?
Is is something Digitec would have in there huge catalog?
Walt
__________________
2003 Newmar Kountry Star 3614, W22 248 WB, Banks Stinger & Ottomind, Motosat HD LCD TV's, WD, 58K "Home is where I park it" Walt
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12-25-2009, 12:48 PM
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#6
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Senior Member
Join Date: Aug 2009
Posts: 1,696
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Sometimes, the component soldered to the board - usually a ceramic resistor - gets so hot during operation that it literally unsolders itself from the board. I've had that happen, and other than redesigning the board, I've fabricated a home-made heat sink - usually a strip of copper - to function as the heatsink - worked for me...
__________________
John Day....|'88 Winnebago Super Chief 27ft. Class A Eastern .....|'88 KIT model 240 24 ft. 5er Oregon ......|'02 Dodge/Cummins 2500 Quad Cab
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12-25-2009, 06:07 PM
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#7
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Senior Member
Join Date: May 2003
Location: Winter Haven Brownsville, TX
Posts: 1,143
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Roadwalt,
Radial Drum Core Inductors
__________________
Wayne & Kathy
05 Alpine 40FDQS #75330 Towing 24' car hauler, 2012 Spyder, 2003 Harley FatBoy
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12-26-2009, 09:34 PM
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#8
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Senior Member
Monaco Owners Club
Join Date: Jan 2001
Location: Foley, AL
Posts: 1,247
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__________________
Rex
2001 Monaco Diplomat 40' PDQ - 08 Honda CR-V
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12-27-2009, 07:02 AM
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#9
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Junior Member
Join Date: Dec 2009
Posts: 5
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Quote:
Originally Posted by Rex
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Thanks Rex,
Been there, done that.
Good news is that I received a response from Joe at HWH on the 24th, a nice Christmas present, they have agreed to replace the unit for me again, and the new one has a modification to the mounting of the Radial Drum Core Inductor, and they will warranty it for another year!
Thanks for all the help from those self-help (and electronically inclined) RVers......
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12-27-2009, 07:05 AM
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#10
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Junior Member
Join Date: Dec 2009
Posts: 5
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Quote:
Originally Posted by Wayne R
Army1sg,
I have been trying to revive a dead 625 panel for a while. I have replaced a voltage rectifier and 2 diodes and jumper-ed a burnt trace wire. The panel will light up but not deploy jacks yet. I will check the RDC for a bad solder joint or open lead. I have been operating Jacks and slides with a simple box with switches I made up but want to get the board working properly. I may still end up getting a new one from HWH. Please let us know if you locate a source for the RDC's.
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Hi Wayne and Kathy,
Before I send you down a diferent troubleshooting road, the original malfunction was "Jacks Down" light when they were retracted.
Thanks for the interest.
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12-27-2009, 07:38 AM
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#11
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Senior Member
Alpine Owners Club Texas Boomers Club
Join Date: Jan 2009
Location: United States
Posts: 1,357
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While it is maddening in the extreme to deal with repeated failures, It is nice to hear that HWH is standing up and accepting responsibility...
Unlike some other companies who will remain nameless...
__________________
Michael (Home base Northern IL)
Alpine 40MDTS (gone but not forgotten)
Now Dynaquest 390XL
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12-27-2009, 08:20 AM
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#12
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Senior Member
Join Date: May 2003
Location: Winter Haven Brownsville, TX
Posts: 1,143
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army1stg, Thanks it was just another possibility. Where is the RDC located? Your board may be a newer version since mine does not seem to have an RDC. Is it on the touch pad? I can't seem to locate it on my 625 board. I am close to getting my 625 working properly. I am down to the circuit that turns on the pump all other functions seem to work. The pump and master relay are good. I am in no big hurry I have made up some switch boxes to do all the functions without the board.
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Wayne & Kathy
05 Alpine 40FDQS #75330 Towing 24' car hauler, 2012 Spyder, 2003 Harley FatBoy
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