I lost 3 motors in one day with no idea why. The gearing was fine , no drivetrain drag, no shorts visible etc... I lost 3 motors in 10 years before that mostly to thrown winds, none just spontaneously cooking like these 3. The motors ran fine the first couple mins then cooked after 2,4,and 5 mins of running. Could it be the ESC?

I am asking specifically about my HFX which I love, but I've heard people complain about Novaks, GMs, and LRPs "burning up" motors.

More info, the HFX was cool to warm after these cookouts and the batt was warm with a normal amount of runtime left after the runs.

I have ran the HFX with all sorts of motors, from wild to mild.....

No issues what so ever......

What was burnt up?
the comm, the windings or ??????

the windings, on three stock motors. 2 comms darkened, 1 comm looks ok

Yeah like I've said, I love it, I've run mods in buggy/truck 10-14 turns, and the other one I have I've run 4 cell 9-12 turn in 12th scale.

I'm sending it in because I'm too chicken to change the wires myself and I cut into them to put in a power capacitor, and then cut them too short to put back in my 10L3T (where I lost the motors).

What kind of stocks were they? What kind of brushes were you running? At most a speedo can only put out the maximum voltage that a battery has. I have never heard of a speedo frying motors before tho.


Gary

They were: an MVP, a Core, and a Rage; with 767's and 769 brushes. I understand the voltage would not be higher than what the battery puts out, I was wondering if there was anything else any ESC could do like short, or lose a fet or have brake problems to kill motors. I have never heard from a reputable source about this, just guys blaming the ESC like me.

I'll look into speedo's and what they can do. As of now the only thing I could think of is that you may have had some of the bad batch of 767's that came out a while back. They would smoke a comm in under 2 min. I'll get back to you shortly. TTYL.


Gary

The only time I have a ESC do this was when the Drive Freq was set to low on the programmable ones.....

Thanks guys

also, I forgot to put it one the service card, the brakes seemed really weak to non existant.

I ordered up a 3rd HFX to cover this one while it's is away, I don't fiqure it'll get back before Sunday the 15th.

Thank you HITEC!
I got my HFX replaced for the cost of shipping!
I'm happy now that I have 3 great esc's.
Gary