victron mppt 100/50 fuse change.

How I changed the main fuse in my Victron charge controller.

[@ZerHour]

Good stuff, I did notice a piece of debris shoot into the cover from when you were trimming a piece of metal ,maybe it was jamming the cover from seating the first attempt ,you can see the debris piece fall out on second fitting 👍

[@trickydicky6788]

Hi, after your comment I thought I better view the video again, and yes you was correct. I am Very glad it did fall out. Thanks for watching.

[@adamkuklych6672]

I'm going to see if this works on a 250/85 as well. Thank you for sharing this knowledge :)

[@DannyCsaszar]

Great video. You helped me fix mine. Thank you. I did not open mine all the way just for now soldered a wire to the fuse to test! 😀

[@trickydicky6788]

Glad it helped

[@DannyCsaszar]

@@trickydicky6788 still working. I have the fuse now and was thinking of just mounting it externally Incase I do another dumb move and wire my battery input improperly 🙂

[@trickydicky6788]

@@DannyCsaszar That may be the best way to go, at least you won't cause any more damage.

[@francisdoll1253]

Well done!

[@stevehowell2906]

Wish I saw this a week ago. I used force and broke the transistors in half. Might see if I can replace them and change the fuse. Worth a try.

[@trickydicky6788]

Yes absolutely worth trying to change the broken parts. I hope your successful, good luck.

[@trickydicky6788]

Hi, I did add a short clip at the end of the video, but it is no longer there for some reason. The answer is yes it's working just fine..

[@ttucro2]

I would have left the fuse in the unit. Then add two wires to the outside and connect the fuse outside of the unit.

[@trickydicky6788]

Hi, yes I could of done that, but the unit will open easily now so I thought I would keep the fuse in the right place.

[@icooper5236]

Thought that had a safety system to stop that happening

[@trickydicky6788]

Not on the battery connections unfortunately

[@habana7638]

Why do it yourself when you have a 6 year warranty...

[@trickydicky6788]

Hi, I done it myself because I shorted it out, and that would not be covered by the warranty.

[@cdonuts7335]

What a butcher! People get themselves in such a mess with this stuff not knowing what they are doing! They have clearly made a fundamental error by either way exceed the 100 volts imput max or the have the solar connected without the battery power to run the controller! The controller must be connected to the battery first! You can send it back?! They have a 5 year replacement warranty with an option of 10 years. Even if it's out of warranty they will often offer you a deal on a replacement. I doubt most people have had them more than that!

[@garysheppard4028]

Incorrect. Victron themselves say that having the unit connected to solar without having it attached to a battery won't destroy it. While they don't recommend it, the device is built to survive that just fine. This was said by them in response to a person asking about this issue. He said that he'd read that numerous times and that if that was the case, very time the battery BMS cut off the battery for whatever reason, that would kill the MPPT. Victron said no, that wouldn't happen. It would be fine. You should view the video before commenting. He broke the unit not by exceeding 100V or by connecting solar with no battery but by connecting the terminals incorrectly.

[@cdonuts7335]

@@garysheppard4028 haha you just said it yourself they don't recommend it! It clearly states in the manual. Not following the correct procedures can disable or damage the charger and/or the installation. Yes you may get away with it, and videos like this saying it's ok is why people are wondering why their controller doesn't work anymore! 🤔 The bms story also sounds like bs! If the bms cut power high voltage the controller is already in absorption and has cut the amps. So no damage! If it's cut low voltage than there is more problems why the controller is not charging! If the bms is shutting down for other issues than you got bigger problems and gets back to my point of people not knowing what they are doing. And no I couldn't watch the whole video it was too painful seeing what you were doing to what are awesome controllers! 😩

[@garysheppard4028]

@@cdonuts7335 Whatever dude. You were the one who asserted that connecting solar without battery could cause his issue. I just pointed out that Victron says it won't. I would take their word over yours. As far as BMS cutting the battery goes: Sure there are lots of reasons why it can do so. That's beside the point. The reason the person was concerned is that he read that if the battery is disconnected (like by the BMS) it would break the MPPT. Victron said that this is incorrect. It won't damage the unit. As far as watching the whole video, he seemed to do a good job at replacing the fuse. He got it working again after connecting with reversed polarity (which caused the problem in the first place). If you had watched the video instead of spouting off about being a "butcher" you would have known that.

[@cdonuts7335]

​@@garysheppard4028 whatever, whatever! I'll follow what the Victron manual states in black and white! Not what someone read on some forum and then they spoke to Victron! 😂 Easier to follow the instructions than make stuff up! Again it's not rocket science the positive in the + the negative in the - 😁

[@garysheppard4028]

@@cdonuts7335 "Not what someone read on some forum and then they spoke to Victron! " Or what the tech from Victron wrote in reply...

[@maxtorque2277]

The potting in the lid is not there to stop you opening it (it clearly didn't stop you opening it, 🙂) it's there for three reasons: 1) To improve the thermal transfer coefficient between the power electronic components and the ambient air 2) To mechanically restrain the large heavy parts like the inductor and smoothing capacitors from vibration 3) The prevent the switching parts from audibly "Humming" and a lower harmonic of the fundamental switching frequency

[@trickydicky6788]

Yes that does sound just about right, thank you for your comment.

[@TheSlikstik]

House burnt down...

[@2626sylver2626]

Hi.its been more than 8 days but no update.is it still working?

[@jirkas229]

why not, i think better be use normal neutral silicon, not termal ceramic paste. Better for disasebly cover is heat it in owen to 100-150C with hot air ! and then uncover it easy.