Chroma ST 10 got wet, one blade won't spin

[BobbyGee]

ST 10 got wet 4 years ago, finally got around to it.Turns on, camera works, new battery, replaced the motor that wasn't working, still doesn't work. Board issue? Please help! Thank you!

 

[WTFDproject]

Hard to guess what's wrong. But if the Chroma got wet, there is a good chance the ESC associated with that motor is bad. Did you try the motor test in the GUI?

 

[BobbyGee]

I pulled the board out, that motor connection looks burnt, I replaced that motor because it also looked burnt. Board is rusty, everything else works like it should

 

[BobbyGee]

Hard to guess what's wrong. But if the Chroma got wet, there is a good chance the ESC associated with that motor is bad. Did you try the motor test in the GUI?
View attachment 29490

No, I didn't do the test

 

[WTFDproject]

I pulled the board out, that motor connection looks burnt, I replaced that motor because it also looked burnt. Board is rusty, everything else works like it should

Probably not much hope for that board. Attempted repairs are notoriously unsuccessful on that one.
It may still be worth connecting to the GUI to take a look at it.

 

[BobbyGee]

Probably not much hope for that board. Attempted repairs are notoriously unsuccessful on that one.
It may still be worth connecting to the GUI to take a look at it.

I cleaned the board with electronic cleaner, will reinstall and take your advice on the GUI. Any idea where I could find another board? Thank you

 

[BobbyGee]

I cleaned the board with electronic cleaner, will reinstall and take your advice on the GUI. Any idea where I could find another board? Thank you.

All motors are green in the GUI. Number 3 is the one not working, still shows green, doesn't spin though

 

[WTFDproject]

Swap the motor lead with the other motor on the same end of the Chroma, and try again. This will show if the issue is in the motor (if the known good motor starts), in the ESC (if the suspect motor starts), or both (if neither motor starts). If both motors start, we gotta scratch our heads some more.

 

[BobbyGee]

Swap the motor lead with the other motor on the same end of the Chroma, and try again. This will show if the issue is in the motor (if the known good motor starts), in the ESC (if the suspect motor starts), or both (if neither motor starts). If both motors start, we gotta scratch our heads some more.

I switched the leads, motor spins and is good, GUI shows all green checks on ESC's etc

 

[WTFDproject]

Probably a blown mosfet on the ESC, or the controller for that ESC is bad. If cleaning the contacts does not help anything, the board will have to be replaced. I do not know of a source for the boards other than check eBay to see if anything shows up.