It's a shame about QC!
Companies should stand by their products!
And they should respond to a question as well!
Not just grab the loot and run!

Quality control Ed, has been long gone in the UK for many years many times I have had to fight for a reply or replacement.😔


Peter(Rooky)

Just me pulling your lanyard Admiral😁
In the UK QC can mean either Queen's Counsel, a very high ranking lawyer / advocate, or Quality Control. 😉
😎

What?
No, Quality Control!
What it called on the other side of the pond?

I just made Rear Admiral!
And I'm already in trouble!!!!!☹️😜

What's a Queen's Counsel got to do with it Ed!? 😂
Although, if it comes to a court case one might have!!😮
Wouldna 'appened on my Test & Development watch! 😉
😎

Sounds like sub standard FETs!
So, What about QC?
What ever happened to QC?

All, That money just to see magic smoke!

I think I'll stick with my 15's!

Just imagine how many others.
May have the same problem!

Me neither with my 10's.
It's beginning to sound like they used the wrong FETs in the 20's!☹️
Cheers 😎

I guess I must be lucky.
I use 15's in all my models!
But, I'm only pushing 5 amps

Haven't had a burnout yet!

Cheers, Ed

As a matter of interest chaps, those of you who had problems with the esc's, were any of them 20amps?⚡

Hi Marky,
No question is silly or Daft.
PCB is short for Printed Circuit Board.

Martin555.

Google is your friend here - it's the common shorthand for a Printed Circuit Board - the substrate on which electrical components are mounted. And hence it's often used to refer to a board with electrical components on it...

Daft question ,whats a PCB?
Cheers Mark

Thanks Doug,it is not just the problem of replacement, it is the cost and inconvenience of sending the defective ESC back to the UK from Canada. Once received MTroniks are quite ready to replace it.
Whilst several of the Quicrun features are of limited value to us ship modelers the reliability and cost appeals. If others have not tried them they are worth considering. Only issue I have found is the wires are a little short.

Well at least they got back to you and are prepared to send you a new one.
I spent eight years making PCB's using surface mount machines and have placed millions of components.
Also tested millions of PCB's and I know that although a few fail most pass.
But we still got a few sent back due to failures.
I also know that a few PCB,s that failed the first test were tested several times and then passed.
I even know that some had a lot of failures so the company that we tested them for chanced the programs so that they passed.
Even changing a component to an equivalent made a lot pass the tests.

And to make matters worse because of the large volume of PCB's for certain companies they decided only to test one In twenty, so purchasing any electrical products is a bit of a gamble.

Martin555.

The problem seems to be more widespread than it first appears.

I have had a reply from mtronics apologising, but not identifying any specific problem. They will replace the damaged unit however.

Thanks for the heads up on the Quicrun. I now remember I fitted one to the outside of an airboat, so it's open to the water. No problems. I was also impressed with the packaging , instructions and fittings that came with it. My next purchase I think.

Heartily agree Cash👍
"The Hobbywing Quicruns are great, ... and you can set the parameters of brake, no brake, lipo or nimh with jumpers instead of doing the transmitter throttle stick 2-step."
I can't dance ☹️ so I used the little programmer😉
Since they are 'out of the box' set up for cars the first thing to do is switch off the Brake between forward and reverse!
On mine it is also possible to set soft or hard (scalded cat😮) start!
Cheers, Doug 😎

I think I saw a post on RCgrroups about the Mtroniks, IIRC the poster states that they were very good, but their posted limits are absolute. Any high amp draw or over voltage and they would fail, stay under the limits you’re good. And, it might be very possible that you got a bad one, or Mtroniks just had a bad batch leave the factory.
The Hobbywing Quicruns are great, I have 3 of them, never a problem, and you can set the parameters of brake, no brake, lipo or nimh with jumpers instead of doing the transmitter throttle stick 2-step. I have some Turnigy Plush brushless escs that I use if I don’t need want reverse, and I bought a program card to suit. Beats the living snot out of trying to program with the transmitter.

Hi Rowen
"Have had a couple or so Mtroniks ESCs fail with burning smells and wires coming out.
Then started using Quicrun ESCs available on the Internet. They are cheaper and perform well. Now have 4 in service without any malfunctions. "
I have a few Mtroniks Marine 10s for my smaller ships, one per motor, and so far no problems🤞
On the other hand! I also discovered the Quicrun series.
Initially for brushless for my Sea Scout upgrade, where it works perfectly😊
I didn't like the prices of the Mtroniks Tia Brushless series!
Then I found the dual brushed Quicrun which I haven't tested yet but I expect it work just as well in my destroyer.
All the recent reports of very similar failures makes me wonder if they've changed the output circuit, e.g. different FETs. Maybe they caught a dud batch of FETs which can't stand the heat!!
Cheers, Doug 😎

I too have had problems with mtronics esc, the problem is voltage not draw. The mtronics standard editions don't like over 12volts (and we all know that a fully charged 12 volt battery is over 12volts) I was directed to Mack Products in New Jersey USA and procured an esc especially designed for nominal 12volt car battery powered model boats.

here is a link to the whole discussion: https://www.rcgroups.com/forums/showthread.php?3262185-ESC-suggestions-Tug-boat

good luck
STEVE

Have had a couple or so Mtroniks ESCs fail with burning smells and wires coming out.
The started using Quicrun ESCs available on the Internet. They are cheaper and perform well. Now have 4 in service without any malfunctions.

Mtronics are very good for replacing faulty units.

They won't acknowledge receipt and won't let you know they are sending replacements.

The replacement will just arrive eventually, without any paperwork.

We have a touring caravan and were staying on a site in Hanley Swan

Thanks for the info chaps. I had the wiring double checked by a boating colleague, Phil, who grew up with electronics. The boat has been on the water several times with the same configuration, so I am confident that I had not made a mistake.
In fact, Phil has had two of the same esc's fail in the last couple of months. The first one popped out a negative lead, as mine did, but did not smoke. The second one was switched on but not under load and suddenly started spitting bits of molten plastic out and smoking badly.
I will contact Mtronics and let you know how I get on.
Ps, mturpin, where did you stay?

Sorry can't make suggestions however, assuming you had it wired correctly (take a picture) of both units wired up. I would then definately contact the manufacturer and send the pictures to them
Good look
PS just been on holiday near your location, a nice part of the country

I have used these speed controllers for many years and never had a problem.
Just recently there seems to be a few now that have burnt out or have just gone pop.
I am wondering if there has been a change in the manufacturing process.
It could be a good question to ask them!

Martin555.

Hi Steve,

I hope you are OK!
And you didn't burn your finger too much!

I never seen one of those ESC burn up like that.
Maybe you should get in contact with the Manufacture!

To see what they say.
Maybe they'll replace the ESC!

Cheers, Ed