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 03-23-2011, 11:52 AM   #1
Junior Member
 
Join Date: Jan 2011
Posts: 6
Automatic Transfer switch

Is my automatic transfer switch malfunctioning? When I plug in the shore power, I hear a click then the shore power circuit trips. This still happens when I turn all the in the motor home breakers off. Power from the generator works fine. I can feel the box "click" when I put my hand on it when the shore power is plugged in.
__________________

__________________
kducat 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 03-23-2011, 12:09 PM   #2
Senior Member
 
Old Bounder's Avatar
 
Fleetwood Owners Club
Ford Super Duty Owner
Join Date: Mar 2009
Posts: 1,634
Most transfer switches are wired such that shore power would pass through the normally closed relay contacts of the TX switch (thus, NO click). It would be more common to hear a "click" when the generator activated the switch to supply gen power to the coach. There should be about a 15 to 30 second delay to let the gen come up to full speed and power prior to the click.

Since you hear a click when plugging into shore power, I suspect that, either your switch is wired back wards (which would NOT necessarily cause your symptoms by it's self) or some internal contact is welded closed. (in the gen position or actually shorted to ground)

The next most common cause could be that you are plugging into a GFCI power outlet and something in your coach has the neutral and ground bonded. That could also be in the switch.

Are you plugging into a proven good power source?
Have you used it successfully, before?
__________________

__________________
Old Bounder is offline   Reply With Quote
Old 03-23-2011, 12:16 PM   #3
Member
 
Bjsrv's Avatar
 
Join Date: Feb 2011
Location: Gardnerville, Nevada
Posts: 64
I have had similar problems and have found the cause to be the shore power line from the coach. Be sure your power line is good from end to end. Check to make sure all connections are tight and nothing shows signs of melting or other abuse.

Sent from my iPhone using iRV2 Forum
__________________
Retired RV Technician
Travlin the West
Winnebago Outlook, Victory Vision, Silverado 3500, Dog ,Wife ( not in that order)
Bjsrv is offline   Reply With Quote
Old 03-23-2011, 01:49 PM   #4
Senior Member
 
RJay's Avatar
 
Newmar Owners Club
Join Date: Jan 2010
Posts: 4,589
I would remove the cover of the transfer switch(with all power removed) and see if there is any evidence of arcing. I would then connect shore power with the cover off to see if arcing is taking place. If you have a surge protector you might want to check that as well.
__________________
2007 Newmar DSDP 4023
Discovery is seeing what everyone else has seen and thinking what no one else has thought.
If you want to see what man made go East; if you want to see what God made go West.
RJay is offline   Reply With Quote
Old 03-23-2011, 02:27 PM   #5
Senior Member
 
wa8yxm's Avatar
 
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 22,787
Posibilities are:

1: Shore cord or the line inside the wall, shorted (Low probility but can happen)

2: Switch is NOT disconnecting from generator (Higher probility)

NOTE: this can be caused by "hot switching" that is ... Some things in the motor home are always on, Converter for example.. However it normally draws very little power and the transfer switch can hot switch it (Switch from Shore to Generator or Generator to Shore without unplugging from shore first) no problem.

Other things. Air conditioners for example... If you "hot switch" once too often.... Weld the contacts on the relay.. This is why you should always UNPLUG FROM SHORE POWER or better yet unplug and trip the MAIN breakers in the coach before starting or stopping, the generator.
__________________
Home is where I park it!
wa8yxm is offline   Reply With Quote
Old 03-23-2011, 08:49 PM   #6
Senior Member
 
Donlock's Avatar
 
Ford Super Duty Owner
Join Date: Dec 2006
Location: Clinton On
Posts: 187
transfer switch

Mine clicks all the time, for years when I plug in to shore power,
never had any issues.
Don
__________________
2013 Georgetown 335 DS
2016 Ford Focus SE
Donlock is offline   Reply With Quote
Old 03-23-2011, 09:03 PM   #7
Senior Member
 
AZgl1500's Avatar
 
Join Date: Nov 2010
Location: Was Mesa, AZ. Now Oologah, OK
Posts: 207
C A U T I O N ! ! !

If you are going to be watching an open transfer box/panel.

Please wear safety glasses.

Flying bits of molten metal can ruin your day and eye sight.

Please?
__________________
1998 Dodge Dually 4x4 CTD
1978 Avion 34' TT
1998 Honda GL1500 Goldwing
AZgl1500 is offline   Reply With Quote
Old 03-24-2011, 07:32 AM   #8
Junior Member
 
Join Date: Jan 2011
Posts: 6
Thanks for all the comments.
Power source has worked in the past, but I am connecting a 50amp thru the 20 amp gfi outlet. Not trying to run anything but the outlets. Is the box worth fixing is is replacement the way to go. Coachman MH is a 1999 and I'm guessing this is the original.
__________________
kducat is offline   Reply With Quote
Old 03-24-2011, 08:02 AM   #9
Senior Member
 
Rexhall Owners Group
Join Date: Dec 2009
Posts: 292
Have you checked the 20 amp gfi outlet? If it has problems it could be your answer.
__________________
PandK is offline   Reply With Quote
Old 03-24-2011, 10:22 AM   #10
Senior Member
 
Ford Super Duty Owner
Join Date: Dec 2009
Location: Mcdonough, Ga.
Posts: 4,382
When you say the circuit is tripping, do you mean it is tripping the main breaker? I was a tech. and about ten percent of the transfer switches do energize (or click) when plugged in. This is the way they are designed. It is not a problem. Of course if the circuit is tripping the breaker, there is a problem. If you only have a short lag before the relay closes, this is normal.
__________________
ga traveler is offline   Reply With Quote
Old 03-24-2011, 01:44 PM   #11
Junior Member
 
Join Date: Mar 2011
Posts: 5
for my 2 cents worth my clicks on a 1996 fleetwood Pace arrow 37 foot
Our new 2006 Newmar doesnt make a sound when plugging in to shore power.
Check the GFI as thats happen to me at home as I run a extention cord 100 feet hope it helps
__________________
scotty2hot is offline   Reply With Quote
Old 03-24-2011, 02:00 PM   #12
Senior Member
 
GaryKD's Avatar
 
Newmar Owners Club
Join Date: Jul 2006
Location: Wellington, Florida
Posts: 12,314
My IOTA ATS has the normally closed contacts are for the generator. When connected to shore power, the ATS must close (loud click) so the normally open contacts (shore power) can pass power to the coach.
__________________
Gary
2005 Newmar KSDP 3910 + GMC ENVOY XUV 37K lbs Moving Down The Road
The Avatar Is Many Times Around The USA
Nobody Knows Your Coach Like Somebody Who Owns One Just Like Yours
GaryKD is offline   Reply With Quote
Old 03-25-2011, 09:42 PM   #13
Senior Member
 
Go Dawgs's Avatar
 
Join Date: Mar 2011
Location: Kent, WA
Posts: 1,051
I had a simular issues with my TT. I would plug into power and trip the circut box. Couldn't figure it out until I ask a friend of mine who is an electrian. He said I had one of the plugs that could be wired wrong. I started in the back and checked each plug. Sure enough it was in the front room. Replaced with new and the system worked great. Start with the wiring on your cord and trace is through. My MH does click now, but only for a quick second. I have an automatic switch.

Good Luck
__________________
Go Dawgs is offline   Reply With Quote
Old 03-25-2011, 09:49 PM   #14
KIX
Senior Member
 
KIX's Avatar


 
Join Date: Dec 2006
Location: St. Augustine, FL
Posts: 3,579
Quote:
Originally Posted by kducat View Post
Thanks for all the comments.
Power source has worked in the past, but I am connecting a 50amp thru the 20 amp gfi outlet. Not trying to run anything but the outlets. Is the box worth fixing is is replacement the way to go. Coachman MH is a 1999 and I'm guessing this is the original.
Plug in to a NON-GFCI outlet. Betting that "repairs" the issue.
__________________

__________________
KIX
'02 Ultimate Advantage 40J Spartan MM - Cummins ISC
2013 Jeep Rubicon JK Unlimited
KIX is offline   Reply With Quote
Reply



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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Transfer Switch Question BCook57 Newmar Owner's Forum 5 07-16-2010 05:10 PM
Transfer switch failed Martind4 MH-General Discussions & Problems 5 02-17-2010 04:20 AM
Transfer switch Chattering travismcm MH-General Discussions & Problems 3 01-16-2010 03:19 PM
Transfer Switch newk72 National RV Owner's Forum 5 10-22-2008 07:54 AM
Replacing transfer switch Lindenberg Alpine Coach Owner's Forum 6 07-15-2008 01:54 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:57 PM.


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