Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
Jayco RV Owners Forum
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-10-2021, 10:01 AM   #1
Junior Member
 
Join Date: Nov 2016
Location: Lavonia
Posts: 21
Inverter quit working

I am hoping someone can shed some light on this.

The other night we were boon-docking in our 2017 29W and were using the inverter(Magnum Dimension model CSW1012) to power the front TV. We were enjoying a old western movie and as the sun set we became cool. To help conserve the battery for the night, I turn on the generator before firing up the furnace. I left the inverter on.

The generator fired and the transfer switch clicked a few seconds later and the power management display showed 30 amp.

The furnace ran and heated the coach. Once the furnace shut down, we decided to turn off the geny and continue to watch TV via the inverter.
However as the generator shut down the TV outlet was no longer powered.
Turned off the inverter and fired the geny up again. All systems came back on.
Tried to use the inverter once the geny was off and the coach was back on DC only - would not work.

Once home I tried to find out what happened as the inverter will not power the TV

Here is the details:

1. Shore power system works
2. Generator system work
3. DC power system work
4. DC power to the inverter 12.8 volts
5. Inverter “green” status and no fault codes
6. GFCI not tripped
7. GFCI will not test
8. No power on the AC side of the inverter
9. Plugged power via drop cord to inverter AC outlet and the TV powers as it should
10. performed soft reset on the inverter - no change
11. performed hard rest - no change

As anyone had a similar issue?
I saw nothing in the manual warning of a damage potential..

Any thoughts and suggestions is appreciated
Alvind is offline   Reply With Quote
Old 03-10-2021, 01:47 PM   #2
Member
 
Join Date: Nov 2017
Location: Hewitt
Posts: 62
Until I understood how the inverter is wired, it confused me. On our Seneca, the microwave and the 3 televisions are powered through the inverter. There is a romex that goes to the inverter and if you are plugged into shore power or if the generator is on, that circuit loops back out on the other romex wire (through a contactor relay within the inverter) and feeds the separate breaker box at the foot of the bed that has 3 breakers in it. So if the inverter sees AC power on the coach, that feed just loops through it. If the inverter doesn't see any AC power, it will power up to serve those circuits. If you look on the outlet side of the inverter, you will see the 2 romex wires that have big flat plugs that plug into matching plastic plugs on rubber cords coming from the inverter. We had the contactor relay go out on ours while we were camping so I just removed the plastic plugs from the 2 romex wires and tied them together, black to black, white to white, etc. Once they installed a new inverter under warranty, I installed twist lock plugs on the romex so if that ever happens again, I can just plug the two romex together and leave the inverter out of the loop. Hope that helps.
__________________
Chuck and Karen
Hewitt, TX
2018 Seneca 37HJ
chfraser01 is offline   Reply With Quote
Old 03-10-2021, 04:34 PM   #3
Senior Member
 
dvspl's Avatar
 
Join Date: Apr 2020
Location: Shrewsbury
Posts: 390
It sounds like the inverter is working but it's output power is not being transferred to the 120V system. This inverter does not have a pass-thru mode, it relies on an external transfer switch. That transfer switch may have failed. I don't have the schematic for how it's wired, but Jayco will give you one if you ask. Also, to make sure the inverter is working, have you looked at the manual? It has some troubleshooting steps and the unit does provide some fault codes. If you don't have the manual, you can download it here:
https://www.magnum-dimensions.com/fi...token=rHJ1rIwm
__________________
retired USCG aviator
2020 Jayco Greyhawk 29MV/2021 MINI Cooper toad
dvspl is online now   Reply With Quote
Old 03-10-2021, 04:40 PM   #4
Member
 
Join Date: Nov 2017
Location: Hewitt
Posts: 62
I am incorrect on this model. I was thinking of the CSW2012 inverter. Sorry
__________________
Chuck and Karen
Hewitt, TX
2018 Seneca 37HJ
chfraser01 is offline   Reply With Quote
Old 03-10-2021, 06:17 PM   #5
Junior Member
 
Join Date: Nov 2016
Location: Lavonia
Posts: 21
Thank you, and yes I reviewed all of the troubleshooting steps. I even call Magnum’s tech support, they said it might be shot and not worth repairing. I got a number of a guy in Nashville to call tomorrow.
I don’t want to replace and have it happen again. Would like to know the root cause....

If i find out anything i’ll post the details.
Alvind is offline   Reply With Quote
Old 03-10-2021, 06:21 PM   #6
Junior Member
 
Join Date: Nov 2016
Location: Lavonia
Posts: 21
Thank you for your post.

My unit has a separate transfer switch and i am wondering if it had a hand in killing the inverter. I’ll post my findings.
Alvind is offline   Reply With Quote
Old 03-10-2021, 06:45 PM   #7
Senior Member
 
dvspl's Avatar
 
Join Date: Apr 2020
Location: Shrewsbury
Posts: 390
Quote:
Originally Posted by Alvind View Post
Thank you for your post.

My unit has a separate transfer switch and i am wondering if it had a hand in killing the inverter. I’ll post my findings.
I finally found the pictures I had taken of the electrical components. The inverter feeds it's subpanel through a separate transfer switch, a Magnum Dimensions CSW-TS15. If the inverter provides 120V from it's GFCI output outlet but doesn't send power to the AC subpanel, then that transfer switch is likely the issue, not the inverter. You can find the manual for the transfer switch here: https://www.magnum-dimensions.com/si...W-TS15-Web.pdf
You can find the switch online for ~$40 at various electrical supply companies.
__________________
retired USCG aviator
2020 Jayco Greyhawk 29MV/2021 MINI Cooper toad
dvspl is online now   Reply With Quote
Old 03-10-2021, 07:59 PM   #8
Senior Member
 
JimD's Avatar
 
Join Date: Apr 2017
Location: Inland Empire, California
Posts: 2,078
If my inverter is on when I cycle the generator it most often trips the GFCI on the front of the inverter. I have the Magnum CSW1012.
Attached Thumbnails
Inverter.JPG  
__________________


Jim

Retired electronic technician (45 years in the field)
2017 Greyhawk 29W (solar & many other mods)
wife (maybe I should have given her top billing)
JimD is offline   Reply With Quote
Old 03-10-2021, 08:57 PM   #9
Junior Member
 
Join Date: Nov 2016
Location: Lavonia
Posts: 21
Thanks for the reply. I have tried to rest the GFCI to not avail. I will try again in the morning. That’s for the insight.
Alvind is offline   Reply With Quote
Old 03-10-2021, 09:08 PM   #10
Senior Member
 
JimD's Avatar
 
Join Date: Apr 2017
Location: Inland Empire, California
Posts: 2,078
Quote:
Originally Posted by Alvind View Post
Thanks for the reply. I have tried to rest the GFCI to not avail. I will try again in the morning. That’s for the insight.
I think GFCIs won't reset unless 120 volt power is present so you may need to have the thing powered on to allow the button to be reset.

When I had the problem, which has happened a handful of times, the remote switch is lit and I think (not 100% sure) that I could hear the unit chirp when powering up. Nothing would come out of its outlets until the button was pushed.

Good luck. Hopefully it is something this simple.
__________________


Jim

Retired electronic technician (45 years in the field)
2017 Greyhawk 29W (solar & many other mods)
wife (maybe I should have given her top billing)
JimD is offline   Reply With Quote
Old 03-10-2021, 10:13 PM   #11
Senior Member
 
JimD's Avatar
 
Join Date: Apr 2017
Location: Inland Empire, California
Posts: 2,078
Attached is the manual for the inverter.
Attached Files
File Type: pdf Inverter.pdf (1.81 MB, 11 views)
__________________


Jim

Retired electronic technician (45 years in the field)
2017 Greyhawk 29W (solar & many other mods)
wife (maybe I should have given her top billing)
JimD is offline   Reply With Quote
Old 03-21-2021, 08:25 PM   #12
Junior Member
 
Join Date: Nov 2016
Location: Lavonia
Posts: 21
Hello,

After detailed troubleshooting, I have confirmed my inverter no longer is working. Instead of trying to take it apart and determine what circuit failed and send for repairs, I purchased a new one and replaced. (This strategy was recommended by the technical service rep.of the inverter.) I assume it failed either due to a current surge from the generator or current low voltage as the generator stopped. I had left it on when I started the generator and shut it back down.

The only thing I did notice that was worrisome is how the factory installed the inverter. The instructions clearly indicate a caution not to put anything between the DC lugs and the current conductors.
In my case, the factory had place a washer between the lug and conductor. Was this the cause of the failure? I can’t say for certain; but the mfg. of the inverter was concerned enough to include a strong warning against it.

The things I am taking way from this exercise are:

1. Check all electrical connectors against the mfg. manuals
2. Review all operations carefully. Check their operations against the manuals not was is spoken during a PDI. (The inverter on my 2017 Greyhawk is not wired or sized to be used other than to operate the TVs when no other AC power source is available.).
3. Inspect and clean up the electrical area. In my case I found loose connectors and wire scrap, enough to caused a short. I also protected the live DC lug in the floor of the compartment. (May have caused my issue.)

In case you are interested the new converter was $366.00 from Amazon. Replacement took less than 30 minutes.
Alvind is offline   Reply With Quote
Reply

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


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Jayco, Inc. or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 12:51 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.