Troubleshooting 3Ø Motors - 03/21/05 07:18 PM
Got the circulating pump motor up and running - found out after church that there's a separate furnace (forced air) for the sanctuary. And of course, the blower motor's a 3Ø... behind an access panel in the basement.
Got power going to it, but it doesn't run. D?C'd it from the line, ohmmetered it, and have no resistance between phases - a little resistance shows if I maually spin the motor, but hard to read and spin at the same time. No contiuity to the case on any lead.
I'm a resi & light commercial spark - not a big motor guy - HELP!
Other than the fact that the inside "looks melty" (dig my technical jargon ), it's not as badly scorched on the outside as the circ motor was. And since it's bigger (7.5 HP v. 3/4 HP) and significantly heavier, I can't just pull it out for a look see.
Any help is appreciated,
Doug
Got power going to it, but it doesn't run. D?C'd it from the line, ohmmetered it, and have no resistance between phases - a little resistance shows if I maually spin the motor, but hard to read and spin at the same time. No contiuity to the case on any lead.
I'm a resi & light commercial spark - not a big motor guy - HELP!
Other than the fact that the inside "looks melty" (dig my technical jargon ), it's not as badly scorched on the outside as the circ motor was. And since it's bigger (7.5 HP v. 3/4 HP) and significantly heavier, I can't just pull it out for a look see.
Any help is appreciated,
Doug