Community Forums

Tim_mobile · 01-15-2022, 04:29 PM

Greetings all! I just bought a 2003 Four Winds Class C that came with an HWH Series 225 hydraulic leveling system (joystick model). The system didn't work, as declared by the seller. When I first looked at it, there were no lights on the panel. I found that the 5amp fuse was blown, so I replaced it. Now the lights come on, but the pump won't engage. After looking at the pump, it looked like someone tried to replace the pump relay with the wrong part. It looked different than the one that comes with it. I bought a replacement relay and installed it. Now, when I engage any of the jacks, I can hear a 'tick' like the pump is trying to engage, but the pump doesn't run.

Anyone have any ideas on this?

THEHOFF · 01-16-2022, 03:11 AM

Is the manual switch on where he could crank them down manually? Do you have plenty of fluid in system? My first two guesses.

MSHappyCampers · 01-16-2022, 11:05 AM

Hi ! Welcome to IRV2! We're sure glad you joined us!

We have a member, azpete, who works for HWH and has been very helpful with our problems. Hopefully he will see your post, or you could PM him!

Good luck, happy trails, and God bless!

RKins · 01-16-2022, 11:18 AM

If it was mine, I would loosen the mounting bolts where the reservoir/pump/pump motor assembly (assy) mounts to the frame. I would clean the mounting points and retighten the bolts, tight. If you see ground wires coming from the assy going to the frame remove/clean and re-land the grounds tightly. Most problems on HWH systems are from poor grounds and poor connections. You found a blown fuse - you didn't find the problem, you found the protection for the assy. High resistance due to poor connections can cause high current draws that blow fuses.
Do you have the operators manual for the assy? ML29511 – HWH® Corporation
I've read here that you may need to clean the contacts that the joystick make as you move the joystick.

rssnape · 01-16-2022, 02:27 PM

So you need to make sure that the pump is getting voltage. Put a meter on the two leads on the pump motor. Get someone to engage the system. If no voltage go to the relay and see if it is getting voltage to make the relay connect. I had to replace my pump motor at one time. Not an easy job on my coach because of its location.

Tim_mobile · 01-16-2022, 10:54 PM

Thank you all for your helpful comments! I think the general census is to clean and re-seat group and positive connections around the pump. That absolutely could have contributed to the blow fuse, that's why I mentioned it.

Next time I get to work on it, I'm going to start cleaning the connections, and grab some photos of what I'm seeing. I'll keep posting updates to this comment in hopes that when I do finally fix it, what I learn will help someone else.

Thanks again to eveyone!

Tim_mobile · 01-17-2022, 03:48 PM

I finally figured it out! If I had to sum it up to one problem, I'd say that is was that I assumed the last guy that worked on this knew what he was doing. After disconnecting and cleaning all terminals with a wire brush and steel whool, I still couldn't get voltage to my meter. I traced the hot wire to the pump and found it went to the deep cycle battery, however, once I pulled the battery out, it was connected to the negative side of the battery. I simply moved the cable to the positive side, and after having the right relay, the damn thing works!

Thanks again for everyone's comments. That helped a lot.

RKins · 01-18-2022, 04:53 AM

Quote:

Originally Posted by Tim_mobile

I finally figured it out! If I had to sum it up to one problem, I'd say that is was that I assumed the last guy that worked on this knew what he was doing. After disconnecting and cleaning all terminals with a wire brush and steel whool, I still couldn't get voltage to my meter. I traced the hot wire to the pump and found it went to the deep cycle battery, however, once I pulled the battery out, it was connected to the negative side of the battery. I simply moved the cable to the positive side, and after having the right relay, the damn thing works!

Thanks again for everyone's comments. That helped a lot.

Yeah, that happens a lot. Glad you figured it out.