Posted By: John. H
Otis 311 gem - 06/22/21 03:18 PM
I have a Otis 311 gem with ovf30 drive. Down with a cvt phase imbalance fault. All 3 legs are at 460 and within a few volts of each other. Wondering which board monitors this. Thanks
Posted By: Pdxelev
Re: Otis 311 gem - 06/22/21 05:48 PM
If you’re seeing any encoder pos faults with it you can try a new encoder but you likely need a new drive. It’s not a board swap fix. Otis is moving away from the ovf30’s with a magnatek Quattro upgrade.
Posted By: BillS
Re: Otis 311 gem - 06/22/21 10:14 PM
If you need the drive rebuilt let me know