210 series HWH jacks not extending

[Gjac]

The problem started 3 days ago when only the front jacks would extend and only the left side joy stick would work. Prior to that they all worked fine. I looked at the manual and removed the cover plate and cleaned some debris out, reassembled and now none of the jacks extend. The power light is on the panel but the pump does not come on. Found a service manual from a post on the forum and it says to check voltage on the pump relay terminal #3 for 12 v which I do not have (points to blue wire or light board). Following page says that if some jacks work and others don't clean debris from joy stick and switch plate. Have any other members gone through this and could shed some light on this problem?

[enblethen]

Thanks for the update!
Shame the relay didn't do the trick!

[Gjac]

Just to update I got the new board today and installed it. It was good to hear the pump running again and the jacks working. The hardest part was figuring out how to disassemble the control box and remove the old board. To do this there is (2) 3 in horizontal bolts that hold the metal valve body to the plastic housing inside the MH that have to be remove so the valve body drops down into the wheel well and the old board and the wiring assy can be removed and the new on installed. Judging from the responses this is not that common of a problem but I think the failure was caused by my drivers side window being left open and rain getting in on the board assy because I noticed a lot of white corrosion on the board. This was a real learning experience for me and I hope this post will help someone else with the same problem.

[Gjac]

I replaced the relay in the board but still have no power to terminal 3 on the solenoid. Have not heard back from the tech people so I called again earlier this week and they said they should call by the w/e . Still have not heard back so ordered a new board hopefully this will allow the jacks to work again.

[Gjac]

WinnebagoBob wrote:
I have had the same problem with call backs from HWH. What has been helpful is their web site. If you look in the pull-down for technicians you can download the manual for your unit with good trouble shooting procedures. Also, they have training programs.

Thanks Bob, I have done that and gone through the troubleshooting procedure and it points me to the board or blue wire from the board that goes to the small terminal on the solenoid (terminal #3) because I do not have 12 v on terminal #3. I am pretty sure it is the board but before I order a new one for $100+ I would like to confirm it with a technician.

[WinnebagoBob]

I have had the same problem with call backs from HWH. What has been helpful is their web site. If you look in the pull-down for technicians you can download the manual for your unit with good trouble shooting procedures. Also, they have training programs.

[Gjac]

Pirate wrote:

Gjac wrote:
When I called for technical help they said they could not get back to me for 2 weeks.

That is horrible that HWH sold all these systems for years and continues to, yet can't pony up the money to adequately staff the company. Cheapo.

HWH has always been good at helping in the past usually called back within the day. But I did get some much needed help from enblethen who called had helped me figure out it was probably the board or more specifically the relay in the board CR1. So I thought I would take a chance on a $9 relay first before I replaced the whole board assy. Also hoping to get a call back before I order just to confirm the testing that I performed to their manual. Has anyone had to replace this board before and did it solve the problem of supplying voltage to the solenoid?

[Pirate1]

Gjac wrote:
When I called for technical help they said they could not get back to me for 2 weeks.

That is horrible that HWH sold all these systems for years and continues to, yet can't pony up the money to adequately staff the company. Cheapo.


Had my own issues recently and much to my happiness, HWH replied to my email within a day and I had new parts withing 3 days.

[Gjac]

I made a mistake I have no voltage on terminal #3 the small terminal where the blue wire from the joy stick panel is connected. Terminal #1 has 12 v from the battery which is the large lug on the pump solenoid. Also disconnected the wiring harness and read 0 v on the blue wire coming from the control box(joystick). This should be 12 v also. So I think it is the light board or the CR relay in the board. I will call HWH and see if I can order a new board. When I called for technical help they said they could not get back to me for 2 weeks. Hopefully I can learn something from the parts dept.

[enblethen]

Lets not condemn the circuit board yet!
terminal 1 is main power to the solenoid from the battery. Diagram MP85-2015 says it should have a fuse.
Drawing MP85.2025 indicates that the relay is energized by the blue wire 9000. You should have 12 volts DC coming out on wire 9000. I beleive you do if your "dash" park brake lights up if equipped. Don't be confused as it has two sources. You should have continuity between red wire 6120 and blue 9000.
Did you clean the contacts on the switch plate and the contact ring? Can't remember whether you said you did.

[Gjac]

If I have no power to terminal #1 on pump relay and blue wire has continuity does that mean relay(CR-1) on light board inside joy stick box is bad?

[enblethen]

No, CR1-2 is on the circuit board on the control unit.

[Gjac]

enblethen wrote:
Have you checked the blue wire #6820 for power leaving the control? It comes off relay CR1-2 contacts. Possible contacts are bad.
The relay is operated off the park brake circuit.
Have you double checked the ground, white wire number 6230 going into the control?
The number 2 terminal on the solenoid is fed by black wire number 8600 through the valve switch and gets connected to ground through the valve control circuitry.
Starting to sound like a bad ground connection on white wire # 6230

If by CR1-2 you mean the relay on top of the pump motor I have checked for 12v at terminal #1 and have no voltage. Also checked wire 6820 for continuity from terminal # 1 to plug going into the joystick box and it was good. I cleaned 6230 white wire ground and checked continuity from fuse to ground and it was good. I am running out of ideas.

[enblethen]

Have you checked the blue wire #6820 for power leaving the control? It comes off relay CR1-2 contacts. Possible contacts are bad.
The relay is operated off the park brake circuit.
Have you double checked the ground, white wire number 6230 going into the control?
The number 2 terminal on the solenoid is fed by black wire number 8600 through the valve switch and gets connected to ground through the valve control circuitry.
Starting to sound like a bad ground connection on white wire # 6230

[Gjac]

Mine is a 210 so I read instructions on pg 18 which really says the sames as pg 13 for the 200 series. I found a lot of debris inside when I took the cover off. Pieces of rubber, dirt, tree stuff were removed by a tool I made for the vacuum cleaner. I also cleaned the switch plate contact ring.