Phillip Mitchell
12-12-2021, 9:52 PM
My blower motor popped a 30 amp breaker on Friday afternoon and I noticed a suspicious electrical burning smell. Reset the breaker and tried the switch again and it was pretty weak / not moving air to start then sounded like it was “running away” going way over the normal speed. Killed the switch and pulled the motor out and this is what I found.
Im not a motor / electrical tech so maybe someone can tell me what I’m looking at. Windings look “crispy” and were extremely dusty. Also the end of the silver (aluminum) round part (rotor?) just outside the shaft had what looks like some broken tabs, but not totally sure.
I’m planning to call the motor shop in the morning and see what they say and likely take it to them if there’s a chance that they could repair.
What am I looking at and what are the chances of repair from a proper motor shop? Or would I be better off to ask them if they have any suitable replacements that could fit (fat chance?) as far as cost comparisons. If so, Is there any reason or logic in going with a bigger (5HP?) motor and keeping the same impeller or is that pointless / asking for trouble. The impeller is steel and 14” in diameter. I’ve been pretty happy with the performance of this setup and really am not in a place to want to replace the DC as I have a good bit invested into it as well at the location of the plumbing.
Not sure if this motor is proprietary or what, but most of my shop is down now because of this and time is of the essence to get back up and running ASAP to minimize lost production.
Early 90s era Powermatic 75 dust collector (I have it modified with 2 Wynn canister filters and a SDD XL before this machine.) 3 hp, 220V single phase.
Any thoughts? Thanks in advance.
Im not a motor / electrical tech so maybe someone can tell me what I’m looking at. Windings look “crispy” and were extremely dusty. Also the end of the silver (aluminum) round part (rotor?) just outside the shaft had what looks like some broken tabs, but not totally sure.
I’m planning to call the motor shop in the morning and see what they say and likely take it to them if there’s a chance that they could repair.
What am I looking at and what are the chances of repair from a proper motor shop? Or would I be better off to ask them if they have any suitable replacements that could fit (fat chance?) as far as cost comparisons. If so, Is there any reason or logic in going with a bigger (5HP?) motor and keeping the same impeller or is that pointless / asking for trouble. The impeller is steel and 14” in diameter. I’ve been pretty happy with the performance of this setup and really am not in a place to want to replace the DC as I have a good bit invested into it as well at the location of the plumbing.
Not sure if this motor is proprietary or what, but most of my shop is down now because of this and time is of the essence to get back up and running ASAP to minimize lost production.
Early 90s era Powermatic 75 dust collector (I have it modified with 2 Wynn canister filters and a SDD XL before this machine.) 3 hp, 220V single phase.
Any thoughts? Thanks in advance.