HWH Jack's

[Acampingwewillg]

We have the older swing down 4 joy stick control HWH system. The only issue I've ever had with them is that on occasion I have to reset the 12 volt circuit breaker. OK, so now, they aren't going down....the HWH panel lights up and the fuse on that panel is OK, the 12 volt resettable fuse is OK, I checked and added some hydraulic HWH fluid. I have not broke out the DVM yet mainly because the last few places we've stayed are level enough and after letting the air out, we're stable enough. Is there a reset on the Pump itself? Any other fixes I'm missing before sticking my head under and in the MH?

Oh, while cleaning outside the house a few weeks ago, I did pressure spray the rear Jack's and this amy have something to do with my issue. Thanks for any idea's.

[azpete]

this is a confusing issue that lots of folks have. the manufacturer decides whether to install an extra breaker or fuse. not hwh. as doug said, they say the mfg may install one.
chinook used to install a resettable breaker that was harder than heck to find. once you know the location of the breakers, it works ok. they have a reputation of breaking often.

[dougrainer]

enblethen wrote:
My rig also has a circuit breaker for the pump.
HWH Drawing
Pump wiring diagram

While the diagram shows a FUSE, the fuse is rarely just for the HWH system. The fuse installed (or Circuit breaker) will usually cover MORE than just the HWH pump. I RARELY have found a Fuse or CB causing a problem on an HWH system. That diagram is a CYA that HWH puts on their schematic. Very few OEM's install such a fuse or breaker. Notice, the fine print on the HWH schematic says fuse "may" be required. Doug

[enblethen]

My rig also has a circuit breaker for the pump.
HWH Drawing
Pump wiring diagram

[Acampingwewillg]

OK after breaking out the DVM, I found the issue right away. That resettable fuse was stuck, it had tripped and just needed to be nudged a tad. Doug...this MH apparently does have this feature, the large battery cables go to and from it and as stated, I've had to reset it before on occasion. Thanks all.... 🙂

[dougrainer]

No resets on any part of the HWH system. You state 12 volt reset circuit breaker, the PUMP power should NOT be on any type Fuse/Circuit Breaker. Doug

[Dick_A]

We had the HWH kick down jacks on our previous motorhome and the only problem we had was a stuck shuttle valve in the pump assembly.

[enblethen]

When you operate the joy stick, does the pump run?
Has there been any work done on the batteries that may have dropped the cable going to the jack motor?