Skip to main content ↑ ↓
Topic: No Shore Power / ATS issue? (Read 1840 times) previous topic - next topic

Re: No Shore Power / ATS issue?

Reply #25 –
This is just the priority relay, so as long as the gen is not running while you are also trying to get shore power to go through, I don't think there is anything you can hurt.
Keith
2003 U320 38' #6197

Re: No Shore Power / ATS issue?

Reply #26 –
well no good :-(
I replace the priority (black) relay then the coil too, still not working :-(
The next part I will order is the orange voltage monitor, but since it works when generator run, then voltage monitor should be good, no?
Former 2003 GV U295 (6230) (2015 - 2025)
Former 94 GV U225 (2013-2016)

Re: No Shore Power / ATS issue?

Reply #27 –
Quote from: Michelle –
Al - does the coach have power when you run the generator?  I didn't see it mentioned.

On a 2003, the primary/priority power source is generator, so the relay that passes power to the coach will need to be "pulled/energized" by power on shore input.  As Dan suggests (tapping), one of the relays could be sticking or may have failed.

Shore power also goes through the Intermatic surge protection device.
The orange Voltage Monitor performs for Shore and Gen power, correct? So since mine is working with Generator, then the Orange Voltage Monitor probably is good or it is good for Gen pins and not good for shore pins?
I talk to FT today, I may end up replacing the Maverick ATS with South wire 40350-rvc
Former 2003 GV U295 (6230) (2015 - 2025)
Former 94 GV U225 (2013-2016)

Re: No Shore Power / ATS issue?

Reply #28 –
Quote from: propman –
The orange Voltage Monitor performs for Shore and Gen power, correct?

It should.  Check the schematics on the cover of the Maverick ATS.  We did replace the one in ours sometime around 2010. 

If you replace the entire transfer switch, I strongly recommend you install a hardwired Progressive EMS at the same time, especially if the new transfer switch doesn't have over/under and surge protection. 

I'm not familiar with Southwire.  ETA - I just Googled and see they make the SurgeGuard models.  I do know a number of SOB owners had issues several years ago with SurgeGuard's transfer switches - connections working loose more often than usual, wires overheating.  That may be different now since it seems Southwire is fairly ubiquitous in the RV industry.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: No Shore Power / ATS issue?

Reply #29 –
Quote from: Michelle –
It should.  Check the schematics on the cover of the Maverick ATS.  We did replace the one in ours sometime around 2010. 

If you replace the entire transfer switch, I strongly recommend you install a hardwired Progressive EMS at the same time, especially if the new transfer switch doesn't have over/under and surge protection. 

I'm not familiar with Southwire.  ETA - I just Googled and see they make the SurgeGuard models.  I do know a number of SOB owners had issues several years ago with SurgeGuard's transfer switches - connections working loose more often than usual, wires overheating.  That may be different now since it seems Southwire is fairly ubiquitous in the RV industry.

Just got of the phone with FT. While they believe the Maverick ATS is/was superior, they are replacing them with Southwire. Best I understood that if I had taken it to them, they would not troubleshoot and/or replace the parts inside the Maverick box, but replace it with southwire. The Southwire appears to be widely used by Class A/B/C/Super-C makers now, hence I think it will be available for sometime. Eventually I may get the Southwire ATS, but I am going to go ahead and order the Orange Voltage Monitor and see what happens. From FT Technical Support help, I understood that since the shore power is used more times than Gen side, the Voltage Monitor replacement could solve the issue. And back in 2010 it did fix your too, so I am hopeful :-) Besides I can remove and reinstall the Maverick with with my eyes close now :-) , but I don't have to take the entire box out to replace the Voltage monitor  ;) Wish me luck :-)
Former 2003 GV U295 (6230) (2015 - 2025)
Former 94 GV U225 (2013-2016)

Re: No Shore Power / ATS issue?

Reply #30 –
The voltage monitor relay is there as a safety, to keep your ATS from connecting your coach to low or high voltage.  If you are in a location where you know the power is correct and consistent, bypass the voltage limiting relay to ensure the rest of the stuff works with it out of the way.  If it all works, then the relay is the issue.  If not, it's one more variable out of the way until you find the actual issue.
Keith
2003 U320 38' #6197

Re: No Shore Power / ATS issue?

Reply #31 –
Quote from: WS6_Keith –
The voltage monitor relay is there as a safety, to keep your ATS from connecting your coach to low or high voltage.  If you are in a location where you know the power is correct and consistent, bypass the voltage limiting relay to ensure the rest of the stuff works with it out of the way.  If it all works, then the relay is the issue.  If not, it's one more variable out of the way until you find the actual issue.
How do I bypass it? just unplug small white & red wires coming from the relays?
Former 2003 GV U295 (6230) (2015 - 2025)
Former 94 GV U225 (2013-2016)

Re: No Shore Power / ATS issue?

Reply #32 –
I'm going from memory here, not looking at mine or the schematic so someone can check or correct me, but there is power in to the relay and power out of the relay plus a ground (for it to reference the voltage against).  If the voltage is too low or too high, the relay doesn't let close and send voltage out, so tying the input and output together will bypass it.

Keith
2003 U320 38' #6197

Re: No Shore Power / ATS issue?

Reply #33 –
Resolved! The issue was with the Orange Voltage Monitor; it turned out to be the faulty part. :-)
Former 2003 GV U295 (6230) (2015 - 2025)
Former 94 GV U225 (2013-2016)

Re: No Shore Power / ATS issue?

Reply #34 –
Quote from: propman –
Resolved! The issue was with the Orange Voltage Monitor; it turned out to be the faulty part. :-)
Glad you got it figured out and repaired.  Just bypassed, or new one?
Dan - Full timing since 2009
2003 U320 40' Tag 2 slide

Re: No Shore Power / ATS issue?

Reply #35 –
Quote from: AC7880 –
Glad you got it figured out and repaired.  Just bypassed, or new one?

Me too! :-) Thank you, I got a new voltage monitor.
Along the way, the first thing I learned is that the Maverick ATS is still superior to what's currently available new, for the most part. Therefore, it was well worth my time to restore it. Now, I also have spare parts for it, and I was able to save some money.
If it happens again while we are on the road, I now also know how to deal with it, except I don't know how to test/bypass the voltage monitor; I will work on learning that.
Without removing all three wires (from shore, generator, and to the coach breaker box) from the ATS box and completely removing the ATS box from its location, one cannot remove the Siemens switches. However, you can replace the orange voltage monitor and the priority relay without removing the wires and the box.
Removing the wires and the box is not a big deal (it was not for me due to its easy access location in my FT).
Former 2003 GV U295 (6230) (2015 - 2025)
Former 94 GV U225 (2013-2016)
 

Re: No Shore Power / ATS issue?

Reply #36 –
Persistence paid off. We all learned something from your ordeal.  Now on to the next thing.
1998 36 foot U270 Build No. 5328 WTFE, 900 watts solar, Victron controller, B2B, bat monitor, 600 AMPH lithium with 2018 Chevy Colorado toad, SKP #110239, Motorcade #17781, 2021 Escape 17B for when Coach is broken down and campsites are too small, retired and full-timer since Dec. 2020. Part of RV family since 1963.