Free 7 Day Trial RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Free 7 Day Trial ×
RV Trip Planning Discussions

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 03-19-2021, 10:49 AM   #1
Junior Member
 
Join Date: Feb 2019
Location: Lake Nacimiento, CA
Posts: 14
Smile Transfer Switch not working

Transfer switch does not transfer from shore power to RV. Generator powers up the batteries fine.
Our RV is a 2014 Newmar Ventana 3436. Worked just fine up till today.
Any suggestions before we purchase a new transfer switch?
Thanks for your help!
Puppy Raiser 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 03-19-2021, 11:04 AM   #2
Senior Member
 
Ljwt330's Avatar
 
Join Date: Jan 2018
Location: Capistrano Beach, California
Posts: 4,463
Quote:
Originally Posted by Puppy Raiser View Post
Transfer switch does not transfer from shore power to RV. Generator powers up the batteries fine.
Our RV is a 2014 Newmar Ventana 3436. Worked just fine up till today.
Any suggestions before we purchase a new transfer switch?
Thanks for your help!

Before throwing money at a new TS, try the following.

First, be sure there is power coming from the outlet you were connected to. Then, disconnect from shore and be sure generator is off. Open up transfer switch cover and inspect all the lugs for incoming shore power for tightness.

Then, using a voltmeter, reconnect the shore power and see if you have voltage on the incoming wires. If no voltage, then the issue is between the shore power and the transfer switch--shore power outlet, plug on the end of your cord, or connections from the cord reel, if you have one.

If there is voltage at the transfer switch lugs from shore power, then the issue is with the transfer switch contacts. Without knowing your particular transfer switch make and model, that's as far as I will suggest. Some switch contacts are serviceable, others it's easier to simply replace the entire transfer switch.
__________________
Larry, Eileen, and Finley
2004 Alpine 36FDDS
Third motor home, first Alpine, no need for another.
Ljwt330 is offline   Reply With Quote
Old 03-19-2021, 11:19 AM   #3
Junior Member
 
Join Date: Feb 2019
Location: Lake Nacimiento, CA
Posts: 14
Will move RV to access TS on Monday. Thanks for your suggestions.
Puppy Raiser is offline   Reply With Quote
Old 03-19-2021, 11:42 AM   #4
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 24,958
Quote:
Originally Posted by Puppy Raiser View Post
Transfer switch does not transfer from shore power to RV. Generator powers up the batteries fine.
Our RV is a 2014 Newmar Ventana 3436. Worked just fine up till today.
Any suggestions before we purchase a new transfer switch?
Thanks for your help!
The generator , doesn't charge the batteries with 12 volt power ; it provides 120 volt power , to the same system to charge the batteries the shore power does . So testing required because it does sound like only one leg of 50 amp power is coming through from the gen set .
Have you reset the breaker on the gen set ?
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 03-19-2021, 01:03 PM   #5
Senior Member
 
Join Date: Jun 2018
Location: Los Angeles area
Posts: 1,225
Quote trimmed for brevity...
Quote:
Originally Posted by Ljwt330 View Post
Without knowing your particular transfer switch make and model, that's as far as I will suggest. Some switch contacts are serviceable, others it's easier to simply replace the entire transfer switch.
Please post the make and model of transfer switch, then take the cover off and post a photo of the interior.

Mike
__________________
Semi-retired technogeek...electronics / computer / 2-way / ham radio... WA6ILQ (45+years)
1985 Fleetwood 32' Southwind (Chev P30/454/TH400), dubbed "Lazarus" by friends... I resurrected it from the dead...
AnotherMike is offline   Reply With Quote
Old 03-19-2021, 04:48 PM   #6
Senior Member
 
Monaco Owners Club
Join Date: Jan 2020
Posts: 1,220
Also disconnect the house battery’s when working on a transfer switch I have seen power fed to the transfer switch from the inverter.
__________________
New to us 2000 Monaco executive 40 500hp tag
Biljol is offline   Reply With Quote
Old 03-19-2021, 05:11 PM   #7
Senior Member
 
Jon_C's Avatar
 
Join Date: Jul 2018
Location: Southeast Texas
Posts: 594
I know my Progressive Industries protector is powered by L1 of the 2 incoming 50a circuits, maybe the TS is same but if both feeds from shore are present, id suspect the TS to be bad.

I found out about the protector power in a park where the breaker was intermittently dropping L1 and id lose all power in the MH because the protector wouldn’t power up. I was able to use the adjacent 30a connector that was powered by L2 as the 30a to 50a adapter ties both circuits together.
__________________
1998 HR Endeavor Cummins ISB 275 / Banks Allison 3060
20014Jeep Wrangler JKUR with M&G air brake with breakaway
Jon_C is offline   Reply With Quote
Old 03-19-2021, 09:34 PM   #8
Senior Member
 
CC38EL's Avatar
 
Join Date: Aug 2002
Location: same
Posts: 544
Notwithstanding all the good troubleshooting tips above, sometimes a good whack with a 2x4 or rubber mallet will convince the switch to move to the desired location.

Should that fail....see above.
__________________
Jim
2019 Coachmen Mirada Select 37LS
CC38EL is offline   Reply With Quote
Old 03-19-2021, 10:15 PM   #9
"Formerly Diplomat Don"
 
Dutch Star Don's Avatar
 
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 19,257
Newmar had a recall for loose wires in the transfer switch. As others stated, open the box and take a heavy duty screwdriver and really crank on the set screws holding the wires.
__________________
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
Dutch Star Don is offline   Reply With Quote
Old 03-20-2021, 12:40 AM   #10
Senior Member
 
SuperGewl's Avatar
 
Winnebago Owners Club
Ford Super Duty Owner
Join Date: Aug 2004
Location: Oregon
Posts: 2,597
OP if I understand correctly, you say your Generator will turn on, correct? But the ATS will not switch to the generator, correct?
If all of this is true, then you need to check and reset the output breakers on the generator.
What everyone else has stated is all true and yes you should perform annual ATS maintenance on the ATS by looking inside for melted and or burnt wires and tighten all of the connections. Of course with NO power applied.
Do all of the things the others have said but first understand, the generator does NOT directly charge the batteries. The batteries get charged the same way shore power does it. The generator creates AC and sends it thru the coach thru the ATS just like shore power.
Good luck and keep us updated on your findings.
__________________
Retired Navy Submariner
2014 Itasca Sunstar 35F; 5 Star tuned; 2014 Jeep Cherokee TrailHawk
SuperGewl is offline   Reply With Quote
Old 03-20-2021, 02:35 AM   #11
Senior Member
 
Join Date: Jul 2014
Posts: 29,417
If the generator charges up the batteries but not the outlets, check for a popped circuit breaker on the Inverter/charger, down in the compartment.
twinboat is online now   Reply With Quote
Old 03-20-2021, 12:01 PM   #12
Senior Member
 
Ljwt330's Avatar
 
Join Date: Jan 2018
Location: Capistrano Beach, California
Posts: 4,463
Quote:
Originally Posted by SuperGewl View Post
OP if I understand correctly, you say your Generator will turn on, correct? But the ATS will not switch to the generator, correct?
If all of this is true, then you need to check and reset the output breakers on the generator.
What everyone else has stated is all true and yes you should perform annual ATS maintenance on the ATS by looking inside for melted and or burnt wires and tighten all of the connections. Of course with NO power applied.
Do all of the things the others have said but first understand, the generator does NOT directly charge the batteries. The batteries get charged the same way shore power does it. The generator creates AC and sends it thru the coach thru the ATS just like shore power.
Good luck and keep us updated on your findings.
Quote:
Originally Posted by twinboat View Post
If the generator charges up the batteries but not the outlets, check for a popped circuit breaker on the Inverter/charger, down in the compartment.

I could have misunderstood the OP, but from what I took away was:

Shore power does not enter the RV through the transfer switch.

The problem is not that the TS fails to switch to generator, it fails to switch to shore power.

The statement about the generator charging the batteries is throwing things off a bit and doesn't make clear if the generator is powering the AC outlets, but that is irrelevant to the main concern so we need to stay on track. The generator works, to some degree, if the batteries are charging, and the TS is connecting the generator to the RV.

The main issue from the OP is, no shore power coming into the RV.
__________________
Larry, Eileen, and Finley
2004 Alpine 36FDDS
Third motor home, first Alpine, no need for another.
Ljwt330 is offline   Reply With Quote
Old 03-20-2021, 01:03 PM   #13
Member
 
Join Date: Sep 2020
Posts: 36
Just had this same thing happen. Gen would only power one leg of the circuit, and when I turned off gen the shore power wasn’t working.

Turns out excess heat caused by pitted terminals on one of the two TS’s had caused plastic to melt and stop making the connection when it tried to switch back to shore power. It even blued the metal.

Ordered a new 45 dollar transfer switch from Amazon and back in action. Click image for larger version

Name:	IMG_8460.JPG
Views:	17
Size:	529.7 KB
ID:	321902Click image for larger version

Name:	IMG_8461.JPG
Views:	18
Size:	543.7 KB
ID:	321903
__________________
1999 Fleetwood Bounder 39Z 145,000miles
5.9L Cummins ISB 24V
rpaldrich is offline   Reply With Quote
Old 03-26-2021, 10:14 AM   #14
Junior Member
 
Join Date: Feb 2019
Location: Lake Nacimiento, CA
Posts: 14
Transfer switch not working

Thanks for all your help.Turned out to be just a loose wire in the power cord plug. We had replaced that male end a couple years ago. Somehow one of the wires worked itself loose.
Puppy Raiser is offline   Reply With Quote
Reply

Tags
switch, transfer switch



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 didn't transfer/switch jimmy braden Class A Motorhome Discussions 29 06-03-2018 12:04 PM
1996 Monaco Signature Easco transfer switch not working? joeplazek Monaco Owner's Forum 11 05-02-2018 05:43 AM
Automatic transfer Switch not working, need help kidoo Tiffin Owner's Forum 6 12-04-2016 07:51 PM
Transfer switch not working tikitom Monaco Owner's Forum 12 02-09-2016 08:26 AM
Power Transfer Switch will not switch...... Rook RV Systems & Appliances 11 11-14-2015 08:22 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 01:00 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.