Plugs for fridge not working on inverter [diagnosing no inverter power]

Topic: Plugs for fridge not working on inverter [diagnosing no inverter power] (Read 1506 times) previous topic - next topic

Re: Plugs for fridge not working on inverter

Reply #25 – April 06, 2024, 10:30:49 am

I have the the MS2812 also. If you have 2 transfer switches your inverter is probably wired through
the transfer switch like mine. Chuck has a good point that the inverter transfer switch could be
eliminated. I think the top transfer switch is for the inverter. Take the top off in the inverter and use
a volt meter. I will check mine this afternoon.

Re: Plugs for fridge not working on inverter

Reply #26 – April 06, 2024, 10:48:14 am

While you all are discussing transfer switches, please remember the switches life time is extended by turning OFF all large current draw devices when changing from shore power to gen power or the reverse. Air conditioners, Aqua Hot electric element, toaster oven, microwave and similar devices draw enough current to cause the contacts to arc as they open and close. they will sooner than later say I give up under that abuse.

Re: Plugs for fridge not working on inverter

Reply #27 – April 06, 2024, 04:01:35 pm

I originally had the heart inverter which I presume was the original. I wanted to upgrade to a pure sine inverter to protect my new tv's and electronics, hence the Magnum2812. I wired it for 30 amp single in single out (see magnum info attached).
I would presume with what you stated that with this wiring everything should still work normally and somewhere, either by the inverter, or the transfer switch, should or use a bypass. I will look this afternoon but I believe there are 2 transfer boxes

Re: Plugs for fridge not working on inverter

Reply #28 – April 06, 2024, 04:45:17 pm

My 2 transfer boxes are stacked on top of each other. There were posts in the past explaining why not going through the inverter using the transfer switch was a good thing. I left mine with my Xantrex SW 3012.

Re: Plugs for fridge not working on inverter

Reply #29 – April 06, 2024, 05:44:55 pm

I have discovered I have two transfer switches (ats100) as well as a ems lchw50 surge protector that I did not know I had
I have never boondocked or ran off the inverter as the original fridge was run on propane when driving,and I am now installing a residential fridge which will have to be run off batteries/inverter via the inverter plug at the rear of the fridge when driving.
The new inverter was wired 30 amp in and out ( see previous post above pic) as per instructions
Was there something I should have done with the setup to accommodate the two transfer switches??
I did reset the inverter via the ac reset and nothing happened
That is where I am now...now further ahead

Re: Plugs for fridge not working on inverter

Reply #30 – April 06, 2024, 05:48:22 pm

Pic of the hard wired surge protector

Re: Plugs for fridge not working on inverter

Reply #31 – April 06, 2024, 08:12:25 pm

Sorry I was wrong it's the bottom transfer switch is for the inverter. The set of points in my transfer
switch that are facing the front of the coach are for the inverter. I took a picture with the lid off the
transfer switch but for some reason it won't load up.

Re: Plugs for fridge not working on inverter

Reply #32 – April 06, 2024, 08:27:46 pm

Did you check this?

Re: Plugs for fridge not working on inverter

Reply #33 – April 06, 2024, 08:54:25 pm

Yes, one of the first things I did. I actualy turned the setting to off so it does not require the 5 watts (default) to activate.
I just had my better half do a test with the system .While i was plugged into shore power I went into the coach to listen and watch. When she unplugged the shore immediately there was a thump at the transfer switch and the power watch went from 115 to 0. I waited a minute (listening to if anything else turned off or on, or if there was a hum (no) and then asked her to plug the shore power back in. Within 10 seconds there was a thump and the power watch came alive.
Question: I s there supposed o be an immediatley thump whwen unplugging shore power? and if so, is that the shore power transfer making that sound? Is ther supposed to be another thump when the inverter one turns on?

Re: Plugs for fridge not working on inverter

Reply #34 – April 06, 2024, 08:56:45 pm

Peter, do you have pics of your transfer switches and the inverter one?
If I take the cover off, what am I looking for as far as problem areas?
This is beyond fustrating..

Re: Plugs for fridge not working on inverter

Reply #35 – April 06, 2024, 09:13:39 pm

Pic number one is the connections I made (single in single out 30 A)
SHOULD I have done the second pic setup with single in single out 60A configuration
Based on my pics I believe I have a 50 amp breaker required to AC input?

Re: Plugs for fridge not working on inverter

Reply #36 – April 07, 2024, 01:49:36 pm

Peter I can't upload the picture to the forum. Email your me at 70morin@gmail.com and
I will send you the picture of the opened transfer switch and we can talk on the phone and
I will walk you through trouble shooting. 604 434 9511

Re: Plugs for fridge not working on inverter

Reply #37 – April 07, 2024, 02:07:55 pm

As Chuck's reply 24 talking about the transfer switch removable I think I thought about it but
as the transfer switch handles 50 amps with #8 wire and the wire going to and back from the
inverter is #12 wire using the inverter transfer switch I would be limited to 20 amps on the
second panel.

Re: Plugs for fridge not working on inverter

Reply #38 – April 07, 2024, 02:44:40 pm

That may be one of the reasons the earlier posts recommended leaving the second transfer switch.

Re: Plugs for fridge not working on inverter

Reply #39 – April 07, 2024, 04:19:09 pm

When AM Solar removed our OEM Taytronics modified sine wave inverter and installed our Magnum MS2812 they mounted it in a different location - closer to the coach batteries. They also ran new 000 cables between the coach batteries and the inverter. I guess that is why they were able to eliminate the OEM inverter transfer switch...which, in the case of our '93 model, was a manual transfer switch. MTS?

See photo below of our old OEM inverter control panel (now long gone):

Re: Plugs for fridge not working on inverter

Reply #40 – April 07, 2024, 08:02:22 pm

On our 97 270 with the magnum 2812 when the inverter is providing power the power watch doesn't show any lights or voltage, so I don't think the inverter supplies any power to that circuit.

Re: Plugs for fridge not working on inverter no inverter power Magnun 2812]

Reply #41 – April 07, 2024, 08:25:57 pm

I updated the topic title to indicate that it's not just the fridge outlets, but that the inverter does not seem to be powering anything.

Michelle

Re: Plugs for fridge not working on inverter [diagnosing no inverter power]

Reply #42 – April 08, 2024, 01:46:36 am

Red tractor
I presume you have two transfer switches in your coach as well as the one in the magnum On mine as soon as I disconnect the ac power and the inverter light at the remote stays solid green the power watch in mine drops to zero as well.
Peter ( old guy) has offered to step me through everything by phone tomorrow and I hope we may come up with a cause. I still have not seen a post remarking if those with two transfer switches in there coaches at the foot of the bed( one for inverter and one for gen/ac) still just let the magnum run thru the inverter as well. Comments would be appreciated. The more I delve into this the more I think the inverter ats 100 is faulty. Will find out tomorrow with Peter

Re: Plugs for fridge not working on inverter [diagnosing no inverter power]

Reply #43 – April 08, 2024, 03:53:19 pm

I talked with Peter and the inverter magnetic switch won't pull down. Had him turn the light over
the table and when he manually pushed the switch down the light comes on. So some how current
isn't getting through the coil that pulls the point together and I don't know how to trouble shoot
that. He is looking at getting a new transfer switch.

Re: Plugs for fridge not working on inverter [diagnosing no inverter power]

Reply #44 – April 08, 2024, 04:08:10 pm

Thanks again Peter!!
Now I know what the issue is. I so now I am replacing the transfer switch for the inverter. Is the progressive dynamics PD 52V a direct plug and play replacement for the magnetik ATS-100? I require replacing the inverter transfer switch and this seems to be the most recent. I want to be able to just swap wires
Anyone done this swap?

Re: Plugs for fridge not working on inverter [diagnosing no inverter power]

Reply #45 – April 11, 2024, 03:25:20 pm

I received the PD52v today to replace my inverter transfer switch which with Peter's (old guy) help was able to diagnose. The new pd52 is smaller than the original magnetek but will fit nicely.
I did notice the other difference is the arrangement of the blocks. They are reversed in the new one which is no big deal
The other difference (see schematics) is the new one labels inputs as hot 1and hot 2 whereas the old magnetek just labeled each as hot.
I am going to presume I use the same hot input( which is hot 1 on the new schematic)as the original
Is there really a difference?
Also the old magnetek had a "relay" block with several wires out and attaching to the block. The new one has a relay "board" which I guess,is their improvement
Any comment in the above findings would be appreciated
I will be disconnecting shore power and turning off the inverter prior to the change out (that's all I am required for safety??)
Peter

Re: Plugs for fridge not working on inverter [diagnosing no inverter power]

Reply #46 – April 12, 2024, 09:35:34 pm

Just to update everyone, the install of the PD52V went fairly smoothly and really, the only extra thing I had to do was cut to length a couple of the wires as they were installed longer in the original. It looks much cleaner with the shortened wiring.

The inverter works well now on battery power and the fridge outlet, as well as all the others inside are operating normally on inverter power. Problem Solved!

It does take about 20 seconds for the transfer switch to cut in for the inverter...but that is minor.

There is a bit of the "hum" that everyone has mentioned with the transfer box, but really, it is not that noticable. It could be "softened" considerably bu adding some dynamat on the remocable lid and the side surfaces if the noise bothers anyone to much.
Thanks to Peter (old guy) again for the tudering, as electrical is really not my bag!

Re: Plugs for fridge not working on inverter [diagnosing no inverter power]

Reply #47 – April 12, 2024, 10:42:35 pm

Quote from: Peter – April 12, 2024, 09:35:34 pm

It does take about 20 seconds for the transfer switch to cut in for the inverter...but that is minor.

I read somewhere that the delay is built into the ATS intentionally. That same ATS model is also used to switch between shore power and generator power. In that application, the delay allows the generator voltage to stabilize before transfer occurs. When used as a inverter ATS, this delay is not desirable, because it causes a "break" in power flow to all connected devices. Depending on what you have plugged into the inverter powered outlets, this may or may not be troublesome.

I believe there is a way to "disable" the time delay function, if it becomes a problem. See the Operation Guide linked below:

https://www.progressivedyn.com/wp-content/uploads/Support/manuals/PD52-PD52DCSD-PD53-Manual-english.pdf

Re: Plugs for fridge not working on inverter [diagnosing no inverter power]

Reply #48 – April 12, 2024, 11:44:47 pm

I see that instruction in the PD manual. BUT I do not know what a .100" jumper is, nor do I know how to instal it.
Suggestions?

Re: Plugs for fridge not working on inverter [diagnosing no inverter power]

Reply #49 – April 13, 2024, 08:14:56 am

Quote from: Michelle – April 04, 2024, 10:38:27 pm

Generator and inverter doesn't have true "earth ground". That's needed to reset a GFCI.

I don't understand this comment, actually have never heard of or experienced this situation. A GFCI will operate with or without a third "ground" wire, it operates when it measures a difference in current between the hot and neutral conductors. It should trip and reset with or without a grounding conductor. I will research this further because I would like to know why some of you have experienced this "not resetting on generator power" condition.

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