Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 03-19-2013, 11:49 AM   #1
Junior Member
 
Newmar Owners Club
Join Date: Mar 2013
Posts: 1
water pump switches

I have 04 Kountry Star, with 2 Switches inside and 1 in the water compartment. At first the 2 inside would not activate the pump, but the one the water compartment would. Now nothing activates the pump.The fuse appears to be ok. Has anyone experienced this problem ? if so what do I do.

thanks Dave
__________________

__________________
dduck is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 03-19-2013, 12:03 PM   #2
Registered User
 
Fleetwood Owners Club
Freightliner Owners Club
Join Date: May 2011
Location: Silicon Valley, CA
Posts: 1,857
Controller

Mine has 4 switches. Somewhere there is a single controller that switches the pump on & off depending on it's current state when any of the switches is thrown.

Mine is in the wet bay near the pump but yours could be 'wherever'. The controller contains at least one relay and all relays eventually go bad. I don't know if the relays can be replaced.

It is a similar system to the one used to turn the coach radio on & off from the bedroom and I found that controller for not a whole bunch of money on eBay.

I also found that one bad switch will cause strange things to happen as well.
__________________

__________________
Muddypaws is offline   Reply With Quote
Old 03-19-2013, 01:03 PM   #3
Senior Member
 
calhyatt's Avatar


 
Newmar Owners Club
Freightliner Owners Club
Join Date: Mar 2012
Location: Weston, Fl.
Posts: 914
Quote:
Originally Posted by dduck View Post
I have 04 Kountry Star, with 2 Switches inside and 1 in the water compartment. At first the 2 inside would not activate the pump, but the one the water compartment would. Now nothing activates the pump.The fuse appears to be ok. Has anyone experienced this problem ? if so what do I do.

thanks Dave
I have an 03 KSDP. I would check and see that you are indeed getting 12v DC at the water pump with any of the switches in the ON position. I suspect your pump is bad or you have a blown fuse. All 3 switches didn't fail. Any one switch in the ON position should provide 12v. to the pump. Start the search ar the pump. Good luck. Let us know what you find.
__________________
2003 Newmar Kountry Star 3905, Freightliner XC chassis with CAT 330. Winnie the black lab, pretty Airbus captain wife, retired airline pilot with 11 grandkids. UH-1 pilot (Huey) U.S. Army 1967-1983. RVN 68-69. Northern Idaho my summer home.
calhyatt is offline   Reply With Quote
Old 03-19-2013, 03:55 PM   #4
Registered User
 
Fleetwood Owners Club
Freightliner Owners Club
Join Date: May 2011
Location: Silicon Valley, CA
Posts: 1,857
Monoplex Controller

I'm home now and able to look at my notes & diagrams.

According to the documents I found online Newmar uses a monoplex water pump control system. The 12v you see at the switches is part of the 'signal loop' and only has to carry enough current to trigger the monoplex to change state. on to off, off to on.

The monoplex system is more reliable, safer and probably cheaper than having heavy guage wires to several places in the coach.

The switches are momentary contact types and when they get dirty they act erratically. All but one of mine has an indicator light that goes on when the pump has power.

I would start by calling Newmar to get the locations of the Monoplex and any fuses that might be in front of it or between it and the pump. Ask for circuit diagrams!

There may be a way to 'jump' the monoplex to power the pump but I would not try it without a circuit diagram.

Jumping the momentary contact switches may damage the loop. It is not designed to carry much current.
__________________
Muddypaws is offline   Reply With Quote
Reply

Tags
water



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:02 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.