Jump to content


Icon Welcome to the FMCA Motorhome Forums!

Register now to gain access to all of our features. Once registered and signed in, you will be able to create topics; post replies to existing topics; upload pictures; manage your profile; get your own private messenger; create blogs; and more. Sign up now! Already have an account? Sign in. This message will be removed once you are signed in.


Photo
- - - - -

1999 Rexhall Auxilary Start Switch


  • Please log in to reply
4 replies to this topic

#1 whitefish

whitefish

    Newbie

  • Members
  • Pip
  • 3 posts

Posted 27 July 2011 - 10:45 AM

We have heard a clicking from the fuse box under the driver side dash. It appears to have been related to the aux.start switch or isolator relay. We now are not able to energize the starter from the ignition key.

Access to the relay area seems to be behind the fuse circuit board and would require its removal,is this in fact the case and how do I diagnose the problem of switch or relay?

Thanks for any comments and help.

Doug Robinson
  • 0

#2 ClayL

ClayL

    Advanced Member

  • Members
  • PipPipPip
  • 175 posts
  • Location:Full Timing - SD for 11 years now snow birds
  • I travel:With Pets

Posted 27 July 2011 - 10:51 AM

The AUX relay/solenoid is usually activated by the Run terminal on the ignition switch or by the Aux start momentary switch. If the relay fails it should not affect the starter. All it does when activated is connect the starting battery and the house batteries.
Sounds like an ignition switch or bad connection problem maybe.
  • 0

Clay (WA5NMR), Lee (Wife), katie & Kelli (cats)
Full timer domiciled in SD for 11 years. Now snow birds with a house in western CO
2004 Winnebago Sightseer 35N - Workhorse chassis


#3 wolfe10

wolfe10

    Advanced Member

  • Moderator, Super
  • PipPipPip
  • 3,438 posts
  • Location:League City, Texas

Posted 27 July 2011 - 11:26 AM

We may be talking about different devices here.

The Auxiliary Start Switch= Battery Combine Switch= Battery Boost Switch is a device for connecting CHASSIS with HOUSE battery banks.

An IGNITION SOLENOID (not to be confused with starter solenoid) is a device that, when energized by the ignition switch supplies chassis battery power to all items that only work when the ignition is on. Items such as starter interlock, dash HVAC fan, etc.

Do all other functions that normally work only when the key is in the ON position work? If so, the ignition solenoid is OK. If none of them do, the ignition solenoid is not working. This could be caused by a bad solenoid or a ignition switch or wiring from switch to solenoid (solenoid not receiving signal from ignition).

Brett
  • 0

Dianne and Brett Wolfe
1997 Safari Sahara 3540
Moderator, FMCA.com Forums
Chairman, FMCA Technical Advisory Committee
Member, FMCA Long-Range and Development Committee 2007-2009
Moderator, http://www.dieselrvclub.org/(FMCA chapter)


#4 whitefish

whitefish

    Newbie

  • Members
  • Pip
  • 3 posts

Posted 27 July 2011 - 12:14 PM

Hi thanks for the replies.

All other ignition items work when the key is on.

Mounted on the fuse panel is a red button labelled Aux start switch with instructions to test:turn off engine,disconnect shore power and press. Isolator relay should click,,,,,no click.

Any thoughts?

Doug
  • 0

#5 desertdeals69

desertdeals69

    Advanced Member

  • Members
  • PipPipPip
  • 1,156 posts

Posted 29 July 2011 - 07:53 AM

Test voltage at the solenoid when red button is pressed. Volt meter black lead on the solenoid case and red to small terninal. If voltage is present and no click solenoid is bad, if no voltage try black to chassis ground.
  • 0




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users