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Old 05-20-2013, 05:19 PM   #1
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My HWH 625 is dead

Parked my 2005 Newmar Dutch Star about 3 weeks ago and put the jacks down. No problems prior.
Yesterday, I started the engine to let it run a while and the air suspension raised the front jacks off the slab.
Today I went to retract the jacks and got no lights on the control panel but the "jacks down" light was on (audible has been disconnected).
I checked voltage to the control panel via the red wire and have voltage there.
On the control box, there's a red LED light on in the far right second row and a couple down at the bottom. (Crude photo attached)
Do any of you experienced guys know what that light indicates and what I need to do?
I was able to bleed the fluid back via the solenoids to raise the jacks.
PS. I called HWH and they said they'd call me back "sometime", that they're very busy. So not expecting a prompt response from them.
Been wanting to hit the road in two days, so if I can't fix it, I guess I just won't have levelers.


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Old 05-20-2013, 05:36 PM   #2
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I suggest to check the fuses F7 (2nd row) which is a 5 A.
Mine was defective.
Also Led 13 should be yellow and 14 Red. If they are not, you have an electronic problem.
Do you ear a click from solenoids. located probably on front passenger side?
I changed one of them while it was that cheap 5 a fuse defective.
The reason why is that I pushed the Jack down several times instead of only one as needed
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Old 05-20-2013, 05:43 PM   #3
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You should contact HWH to get the Service & trouble shooting instructions.
If it is not just a blown fuse,you can send me a PM for some help.
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Old 05-20-2013, 06:35 PM   #4
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So there are fuses on the board to check?
How do you remove the clear cover to get to them?
Thanks for the help.
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Old 05-20-2013, 06:49 PM   #5
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The clear plastic cover is held on by the rubber gasket. You can peel back the rubber along the sides to uncover the cover. There are lots of fuses so you will need the service manual to see what fuse is for what.
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Old 05-20-2013, 07:04 PM   #6
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You can download the service manual from the HWH site, well worth it and it will walk you through many different trouble situations. Then depending on what lights you get on the control box (where you took the picture) it will give you steps from there. I just went through this about a month ago, and it takes HWH about 3-4 days to call you back. While the service book did not have a solution for my issue, the tech guy did and in about 15 minutes I was fixed and running again.

Not sure if this will work, but here is the manual:
http://www.hwh.com/ml35963.pdf
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Old 05-20-2013, 08:26 PM   #7
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Thanks for the link to the manual. According to it, I should see some yellow lights and see none, so I need a new control board. Not buying that yet.
I had been looking for fuses but didn't know they are on the board.
I'll check the fuses tomorrow.
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Old 05-20-2013, 09:39 PM   #8
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Quote:
Originally Posted by gewilli View Post
The clear plastic cover is held on by the rubber gasket. You can peel back the rubber along the sides to uncover the cover. There are lots of fuses so you will need the service manual to see what fuse is for what.
I had a similar problem and this is what was suggested by the HWH technical support....
If the fuse and lights are OK than you have a defective solenoid (there are 2)
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Old 05-21-2013, 09:44 AM   #9
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call me at 1-602-549-3638. maybe i can help. i work for hwh as a traveling rep.
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Old 05-21-2013, 12:12 PM   #10
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call me at 1-602-549-3638. maybe i can help. i work for hwh as a traveling rep.
Thanks Pete. I called, but didn't get through. I will try again later.
Today, I checked all the fuses on the board and they are OK.
I determined that the master relay is not getting the signal to energize it. I can jump from the main + cable to the black trigger wire and the solenoid will energize (the CR7 red LED will illuminate) . I think this is my problem but don't know why I'm not getting a signal from the black wire to the relay or how to remedy the problem.
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Old 05-22-2013, 07:52 AM   #11
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When you trigger it , do you ear a "click" from the solenoid?
Also have you checked for a loose cable, the ones around the solenoids? Might also be a defective ground?
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Old 05-22-2013, 01:22 PM   #12
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Quote:
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When you trigger it , do you ear a "click" from the solenoid?
Also have you checked for a loose cable, the ones around the solenoids? Might also be a defective ground?
I've checked all wires for tightness and verified the grounds with a meter. The solenoid works properly when I energize it.
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Old 05-22-2013, 01:32 PM   #13
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So you have power to the solenoid and mean that fuse is good (believe it is a 50A fuse)
If the fuse F7 is OK and LED 13 yellow and 14 red, sorry I have no clue what could be wrong.
Let me know what you fund.
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Old 05-22-2013, 04:42 PM   #14
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So you have power to the solenoid and mean that fuse is good (believe it is a 50A fuse)
If the fuse F7 is OK and LED 13 yellow and 14 red, sorry I have no clue what could be wrong.
Let me know what you fund.
I don't know of a 50A fuse anywhere. Where should I look for it?
No LEDs are lit at 13 or 14 above CR7 for the master relay.
The big 12V red cable from the battery to the master relay is hot. That's the only thing that has voltage to the relays. The smaller black wire that energizes the relay has no voltage to it.
I've been through the diagnostics in the troubleshooting guide and it looks like I need a new control box. Still waiting for contact from HWH.
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