Motor insulation - How to check your motor! (Blowing ESC reason #1)

[@tkeeg]

Thanks for posting! I only wish I had seen this a bit earlier as I just today lost a motor in one of my twin engine planes because of this. Luckily it burned up between flights. When I plugged in the battery for the 2nd flight there was a slight, muffled kind of pop sound and a cloud of smoke came out of the motor. Fortunately it didn't damage the speed controller. I was surprised on how much smoke came out of the burnt motor! I'll be doing your simple test from now on for every motor I have!

[@Futurase1]

I am glad you made a video out of the help you gave me. Nice to know I'm the inspiration for something!!! Fredrik helped me trouble shoot a "Satellite Data Framing Error" on my Vbar and it was a short in my motor.

[@geepytee]

What if all your phase wires read different resistances to ground (shaft)? Would it be safe to assume at least 2 of them are shorted/damaged, or could a wider range of resistances between winding/ground be acceptable for a BLDC? (They are not zero).

[@JAY2BLADESPERRY]

Now that just blew my top lol thanks for sharing that buddy!

[@BladePilot24]

GREAT video and explanation!!! Matt

[@1180flowrider]

Fantastic info man! Thanks a bunch!

[@jctgf]

Hi there, can i test the motor while it IS ON THE HELI (only having to disconnect it from the Esc) or DO I HAVE to remove it from the heli? Thanks.

[@unsettledroell]

I built a drone yesterday and i couldn't get it to fly. After a while i found out the carbon fibre got really hot when the motors spin up! I think a screw touches the coils of the motor, and the current flows through the arm back to the PDB... i will remove the screws and try again :p

[@FredrikMelin72]

On the helis where you should do it, otherwise unscrewing the screws can make it look Ok while it's not.

[@bnchinook]

Thanks for the info.

[@SquidWithGear]

great stuff

[@ahmedaskar3052]

Good job

[@dana59155]

He sounds like Tim the bear from Cleveland Show lol. But really though this was helpful thanks!

[@perrysnopeep]

You da man!