69 replies to this topic

[crashmaster]

keep us posted!!!

 

MPPT is working well so far with the disconnected and capped load wires.  If the MPPT fails again I will for sure post on this thread.

Edited by crashmaster, 11 July 2020 - 04:26 PM.

[beachbunny]

is this maybe why my isotherm fridge is temperamental? sometimes running and sometimes not?

[Jon R]

Has shore power been connected just prior to these failures?

[beachbunny]

Has shore power been connected just prior to these failures?

if we are talking about the fridge,it has been on shore power the whole time this week

[Vic Harder]

Has shore power been connected just prior to these failures?

Why do you ask, Jon R?

[Jon R]

Hi Vic:

Kind of along the line of something Rando asked, I was thinking that maybe the Iota had been one way or another wired to the load output of the MPPT controller and maybe was blowing internal fuses on the controllers. If that was the case I would think the OP would eventually notice the timing connection. As I found when I finally fired up my Iota a couple of weeks ago, if it thinks it’s connected to a battery it ramps its voltage up to 14.8 volts trying to force 30 amps of current to flow. If it’s somehow connected to it, maybe the load output of the MPPT can’t tolerate that voltage being applied. Just a thought. I’m not knowledgeable about the guts of these boxes.

Jon

[Vic Harder]

Good thinking…

[bwag]

Any updates from the OP or crashmaster? My overland solar MPPT is likely having the same issue. Everything electric in the camper works but the MPPT doesn’t seem to be getting power. The leds aren’t on but the smart dongle I’ve got hooked up to it is flashing red/blue simultaneously indicating a communication error which would make sense in relation to no power. About 6 months ago I replaced the overland solar display for the bmv 712 and installed the included shunt, I also connected a victron smart dongle to the MPPT all worked well until recently. What I don’t have in common is any load wires being connected to my mppt or even attached to the red/black lines, the video referenced on the previous page is from 2019 so maybe that’s been a corrected issue.

Edited by bwag, 24 August 2022 - 12:06 PM.

[Vic Harder]

I wonder about those rebranded Victron Overland MPPT controllers. Are these the ones that Victron Quality Control rejected?

Also wondering what the overload protection is like on the input side. It should be able to take 100V, but at what current level? Sorry, I don’t have the manual in front of me at the moment.

[bwag]

I wonder about those rebranded Victron Overland MPPT controllers. Are these the ones that Victron Quality Control rejected?

Also wondering what the overload protection is like on the input side. It should be able to take 100V, but at what current level? Sorry, I don’t have the manual in front of me at the moment.

It does make me wonder.  While it seems like Overland Solar is offering great customer service related to this issue and it could just be coincidence, figured I'd replace/install using the Victron brand and see what happens.  

Edited by bwag, 24 August 2022 - 12:21 PM.