@@EbikeRepairs thats not true at all,it all depends on the manufacturer you buy it from weve installed unlocked versions of this controller that have been going for years and pushed 100 amps dc,controller lifespan is also related to batteries ,the motor your running and types of wires ,if there is bottle necks,if you buy from only places like Siaecosys,Dunn,or QS motor you wont have any issues or warrenty concerns
Siaecosys has also made there own app in replace of the clunky MQcon app and theres shows real time controller configuration and values,but you need to buy through them as they coded it for their controllers,ive looked at amazon and i wouldnt buy any of these type controllers from there from what im seeing they dont look rite
I have that same controller I took a peek inside when it was new to make sure all the solders were good before giving it power for the first time and it smelled like it something shorted out inside bad. But everything looked ok. I hooked it up and it's been working with no issues for 6 months now. But that smell was bad.
just thought id say it does matter where you buy these from without a doubt ive found that Siaecosys is the best and biggest manufact of controllers they have a partnership with QS motor aswell they allso have their own sabvoton apps and software thats really stable ,i bought a svmc7245 unlocked from them and no kidding had 120 amps dc programmed in without a hitch ,ive also found their prices and delivery times much better ,one delivery was 4 days china to australia and only cost l;ike 10 bucks extra for memory they have ali express and ebay stores as well as direct sites,buuy your controllers from the one of the big manufact not the resellers
@@EbikeRepairs hiya do you still have that controller was wondering if i coud get a couple of photos off the wiring in the rear of the mcu board ive got to repair one and i lost my photos i took before pulling all the wires out cheers KT
I did some research on these controllers and i did find out an issue that may have got alot of people,if your battery is fully charged if its 72 volt then batt will 82 volts if you start off and have regen enabled and it actually takes you beyond the 82 volt it will kill the unit and the lcd, this problem is with all the svmc series in the version one (V1) its been corrected in V2 as well as the brackets they are on the endes now.
@@katiekumcgil Hi Katie, I have a 72100 with a sw900 display. No errors Yet the throttle does not work. It shows up in the app as having 0.04 volts then I plug in the PAS. And it jumps up to 0.16volts. It should be 1.1 1 volts on the app Everything else seems fine. No errors on the controller or the display Any thoughts? Can you help? Do you do repairs?
hello hon,iif you remove the displayand put the program lup inso the unit start up can you reset the values in the app to factory then see what happens@@julirichmond3
just thought share this ,got one these svmc7245 controllers ,but got the unlocked version with out lcd as ive built something special in that area,and have it set and running at 85 volts and 100amp and its going like a trogan, i did change the caps to higher voltage and changed the power wires and phase wires but dont really need to im just anal and need everything to match.
Yes, I have two of them with the same story... I tried to fix them, replaced mosfets and a couple of capacitors, but nothing. I guess he has a problem communicating with the hall drivers... (DO NOT BUY).
just had a clone 80a version go pop when i was playing with it, the fets inside had gone short, no doubt to the poor quality of them. replacing them with decent fets is like 50 quid on a controller that was 60.... so end of the day i'll have a good strong but still fake controller for like 110 and i could have got the real deal for like 140..... buy cheap buy twice......
@@EbikeRepairs yeah I managed to find some on AliExpress.... Stop laughing lol. No not new ones at a cheap price or expensive fakes, but genuine ones they have cut out of recycled equipment at 25% of the price. Ordered extra to allow for blown ones and damage during no doubt unskilled removal. Customer reviews said genuine but only about 90% good with short leads so ordered 30 to replace 18.... Cost 19 beer tokens instead of 36-44 for new. Still be interesting to see if it's worthwhile, if they are 90% good I'll be stocking up for future projects.
heya Lez every sabvoton now is a clone ,the original company closed so long ago the patents whent public access,,but there are some small manufacturers that dont have very good quality control
HIYA i have a couple of the svmc 7245 mcu boards that are still functioning and also have one of the fet boards without an mcu, would any of these help you out im at parramatta
I have this controller and it say system error controller overhearing. So can't use it got any tips on how to fix it. And I have check all the wires everything is fin.
this really would have been a pretty easy repair job the fet and diodes are readily available,and drivers
Yes true, but these are notoriously shitty
@@EbikeRepairs thats not true at all,it all depends on the manufacturer you buy it from weve installed unlocked versions of this controller that have been going for years and pushed 100 amps dc,controller lifespan is also related to batteries ,the motor your running and types of wires ,if there is bottle necks,if you buy from only places like Siaecosys,Dunn,or QS motor you wont have any issues or warrenty concerns
Siaecosys has also made there own app in replace of the clunky MQcon app and theres shows real time controller configuration and values,but you need to buy through them as they coded it for their controllers,ive looked at amazon and i wouldnt buy any of these type controllers from there from what im seeing they dont look rite
I have that same controller I took a peek inside when it was new to make sure all the solders were good before giving it power for the first time and it smelled like it something shorted out inside bad. But everything looked ok. I hooked it up and it's been working with no issues for 6 months now. But that smell was bad.
Sometimes the plastic/silicon used is awful! The reason this controller failed is unknown.
just thought id say it does matter where you buy these from without a doubt ive found that Siaecosys is the best and biggest manufact of controllers they have a partnership with QS motor aswell they allso have their own sabvoton apps and software thats really stable ,i bought a svmc7245 unlocked from them and no kidding had 120 amps dc programmed in without a hitch ,ive also found their prices and delivery times much better ,one delivery was 4 days china to australia and only cost l;ike 10 bucks extra for memory they have ali express and ebay stores as well as direct sites,buuy your controllers from the one of the big manufact not the resellers
they sell so many controller brands and accesories and motors ,im even looking at in hub hybrid car electric kit
Yes I agree - the 'suspiciously' cheap ones aren't to be trusted!
@@EbikeRepairs hiya do you still have that controller was wondering if i coud get a couple of photos off the wiring in the rear of the mcu board ive got to repair one and i lost my photos i took before pulling all the wires out cheers KT
I did some research on these controllers and i did find out an issue that may have got alot of people,if your battery is fully charged if its 72 volt then batt will 82 volts if you start off and have regen enabled and it actually takes you beyond the 82 volt it will kill the unit and the lcd, this problem is with all the svmc series in the version one (V1) its been corrected in V2 as well as the brackets they are on the endes now.
They should be able to cut regen above 84v in the settings!
I always wondered why my regen didnt kick on until about 81 votlts!
i have 2 of the V2's on my bench right now that are blown, like craters in the pcb blown. it has definetly not been corrected.
we are considering offering a repair servive too for svmc series only the ebike ones
Where are you located?
we are in sydney Australia ,sorry about the late reply you tube doesnt always send the right notifications despite the settings we put in
@@katiekumcgil
Hi Katie, I have a 72100 with a sw900 display.
No errors
Yet the throttle does not work.
It shows up in the app as having 0.04 volts then I plug in the PAS. And it jumps up to 0.16volts.
It should be 1.1 1 volts on the app
Everything else seems fine.
No errors on the controller or the display
Any thoughts?
Can you help? Do you do repairs?
hello hon,iif you remove the displayand put the program lup inso the unit start up can you reset the values in the app to factory then see what happens@@julirichmond3
put the program plug in
just thought share this ,got one these svmc7245 controllers ,but got the unlocked version with out lcd as ive built something special in that area,and have it set and running at 85 volts and 100amp and its going like a trogan, i did change the caps to higher voltage and changed the power wires and phase wires but dont really need to im just anal and need everything to match.
Nice!
Yes, I have two of them with the same story... I tried to fix them, replaced mosfets and a couple of capacitors, but nothing. I guess he has a problem communicating with the hall drivers... (DO NOT BUY).
Hello mate i need to replace the green resister underneath the 100v 47uf capacitor but im not sure what it is, could you tell me please?
sorry, this controller is scrap now!
The big green resistor is 3W20RJ
Just a flat blade driver will do
Maybe!
its difficult but you never seem to show the end repair or even fault find sometimes and go through showing the repair at the end
Sometimes I do! Over 200 videos and at least 3 show the whole thing 🤣
just had a clone 80a version go pop when i was playing with it, the fets inside had gone short, no doubt to the poor quality of them. replacing them with decent fets is like 50 quid on a controller that was 60.... so end of the day i'll have a good strong but still fake controller for like 110 and i could have got the real deal for like 140.....
buy cheap buy twice......
fets are expesive these days... this one went in the scrap
@@EbikeRepairs yeah I managed to find some on AliExpress.... Stop laughing lol. No not new ones at a cheap price or expensive fakes, but genuine ones they have cut out of recycled equipment at 25% of the price. Ordered extra to allow for blown ones and damage during no doubt unskilled removal. Customer reviews said genuine but only about 90% good with short leads so ordered 30 to replace 18.... Cost 19 beer tokens instead of 36-44 for new. Still be interesting to see if it's worthwhile, if they are 90% good I'll be stocking up for future projects.
get the fets from element 14 they have good prices
@@katiekumcgil that's best for fast and genuine. The used ones I bought turned out pretty good and it's back up and working.
heya Lez every sabvoton now is a clone ,the original company closed so long ago the patents whent public access,,but there are some small manufacturers that dont have very good quality control
HIYA i have a couple of the svmc 7245 mcu boards that are still functioning and also have one of the fet boards without an mcu, would any of these help you out im at parramatta
happy to donate them for a video let me know
Thanks buddy but this one has gone in the scrap bin now!
What the number on that resister
Sorry I'm not sure, the controller has been in the scrap for a year now!
if you find you just cant repair your 7245 i dont mind doing it for you now im retired ive plenty of time on my hands
just dont remove the wires from the mcu board as there are different arangements for diferent manufacturers
This one is long gone now Bud thankyou though!
I have this controller and it say system error controller overhearing. So can't use it got any tips on how to fix it. And I have check all the wires everything is fin.
unfortunately most errors cant be fixed without replacing controller + display as a pair! thanks
Sabvotons are not the controllers they used to be! I've had a couple fail
Yes I agree! The FETs are different now
@@EbikeRepairs defo.👍