Hello everyone, I’m hoping someone feels like helping me with my broken leaf blowers. I have two Ego 56v units that both stopped working in the same manner. I was humming along working and both my main and backup halted, one a few weeks ago and one this week. I tested the motor units with a multimeter set to ohms and they both read 0. I tested a few combinations of wires and nothing but when I spun the fan it read various numbers.

How would I test the control unit? They also have a 63v 680uf capacitor, it looks normal with no swelling. There’s no fuse that I can see. These are expensive and I would prefer to not drop the full price on two new ones. These blowers see heavy everyday use so I’m not terribly mad at the brand. There’s a weak link somewhere and I would like to have an extra component as at some point they are bound to break again. I’m married to Ego tools as I have many tools and many expensive batteries where switching brands would be cost prohibitive.

 

If it matters, when I squeeze the trigger the battery lights up as normal.

 

You need to open the control box to see how it's driven.

 

I assume they are PM BLDC motors?
A test of the motor is to simply spin it and see if a voltage is generated on any pair.
You would need to preferably reverse-engineer the drive in order to do any fixing.
Or at least test the power semi-conductors.

 

I tested multiple combinations of the three motor wires and every one produced a voltage when spun.

Or at least test the power semi-conductors.

Would you possibly give a little direction on this suggestion? The control box is sealed with a white rubber, possibly the inside is filled with it? No concern about the capacitor?

 

If it is soft material, you may be able to chop/cut it out in order to go any further with testing, if epoxy, usually out of luck.
No doubt there is some large semi conductors mounted to the finned HS.